U.S. SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM SB-2
             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                                 FIRST AMENDMENT
                                  WINMARK, INC.
                       (Formerly Ecostructure Corporation)
                ------------------------------------------------
                 (Name of Small Business Issuer in its Charter)


      Nevada                         6770                      58-2679116
- --------------------------------------------------------------------------------
(State or Jurisdiction    (Primary Standard Industrial       (I.R.S.  Employer
of Incorporation or        Classification Code Number)      Identification No.)
Organization)

                               607 E Street, S.E.
                             Washington, D.C. 20003
                                 (202) 544-6562
- --------------------------------------------------------------------------------
 (Address and telephone number of Registrant's principal executive offices and
                          principal place of business)

                            The O'Neal Law Firm, P.C.
                       Attention: William D. O'Neal, Esq.
                              668 North 44th Street
                             Phoenix, Arizona 85008
                               Ph: (602) 267-3855
                               Fax: (602) 267-7400
- --------------------------------------------------------------------------------
           (Name, address, and telephone number of agent for service)

Approximate date of proposed sale to the public: As soon as practicable after
this Registration Statement becomes effective.

If delivery of the prospectus is expected to be made pursuant to Rule 415, check
the following box. [x]

If this Form is filed to register additional securities for an offering pursuant
to Rule  462(b)under the Securities Act, please check the following box and list
the Securities Act  registration  number of the earlier  effective  registration
statement for the same offering. [ ]

If this Form is a  post-effective  amendment filed pursuant to Rule 462(c) under
the  Securities  Act,  check  the  following  box and  list the  Securities  Act
registration  statement number of the earlier effective  registration  statement
for the same offering. [ ]

If this Form is a  post-effective  amendment filed pursuant to Rule 462(d) under
the  Securities  Act,  check  the  following  box and  list the  Securities  Act
registration  statement number of the earlier effective  registration  statement
for the same offering. [ ]

If the delivery of the  prospectus  is expected to be made pursuant to Rule 434,
check the following box. [ ]

                                       1





                         CALCULATION OF REGISTRATION FEE
                  --------------------------------------------


    Title of each                         Proposed            Proposed
       Class of                           Maximum             Maximum              Amount of
    Securities to      Amount to be     Offering Price        Aggregate           Registration
    be Registered       Registered        Per Share         Offering Price           Fee
- ------------------ ------------------ ------------------ ------------------ ------------------
                                                                          
Common Stock            500,000       $0.10 per share (1)       $50,000              $4.60
- ------------------ ------------------ ------------------ ------------------ ------------------


The Company hereby amends this  registration  statement on such date or dates as
may be  necessary  to delay its  effective  date until the Company  shall file a
further amendment which  specifically  states that this  registration  statement
shall  thereafter  become  effective  in  accordance  with  Section  8(a) of the
Securities  Act of  1933  or  until  the  registration  statement  shall  become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.

______________________________________
1.   Estimated  solely  for the  purpose of  calculating  the  registration  fee
     pursuant to Rule 457.

                                       2




                                  WINMARK, INC.

                              Cross-Reference Sheet
                             pursuant to Item 501(b)
                  Showing Location in Prospectus of Information
                         Required by Items of Form SB-2

       Registration Statement Item          Caption in Prospectus
      -----------------------------         -------------------------
 1.Front of Registration Statement and    Facing Page; Cross-Reference Sheet;
   Outside Front Cover of Prospectus      Prospectus Cover Page
 2.Inside Front and Outside Back Cover    Prospectus Cover Page; Prospectus Back
   Pages of Prospectus                    Cover Page
 3.Summary Information and Risk Factors   Prospectus Summary; The Company; Risk
                                          Factors
 4.Use of Proceeds                        Use of Proceeds
 5 Determination of Offering Price        Risk Factors; Plan of Distribution
 6.Dilution                               Dilution
 7.Selling Security Holders               Not Applicable
 8.Plan of Distribution                   Prospectus Cover Page; Plan of
                                          Distribution
 9.Legal Proceedings                      Legal Proceedings
10.Directors, Executive Officers,
   Promoters and Control Persons          Management; Principal Shareholders
11.Security Ownership of Certain
   Beneficial Owners and Management       Principal Shareholders
12 Description of Securities              Description of Securities
13.Interest of Named Experts and Counsel  Legal Matters; Experts
14 Disclosure of Commission Position on
   Indemnification for Securities Act     Certain Relationships and Related
   Liabilities                            Transactions
15.Organization Within Five Years         Prospectus Summary; Proposed Business
16.Description of Business                Proposed Business
17.Management's Discussion and Analysis
   or Plan of Operation                   Management's Plan of Operation
18. Description of Property               Proposed Business
19.Certain Relations and Related          Certain Relationships and Related
   Transactions                           Transactions
20.Market for Common Equity and Related   Description of Securities; Selling
   Stockholder Matters                    Security Holders
21.Executive Compensation                 Management
22.Financial Statements                   Financial Statements
23.Changes in and Disagreements With
   Accountants on Accounting and
   Financial Disclosure                   Not applicable



                   PRELIMINARY PROSPECTUS DATED MAY 10, 2004

The  information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed  with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to  sell  these  securities  and it is not  soliciting  an  offer  to buy  these
securities  in any state  where the offer or sale is not  permitted.



                                       3


                                   PROSPECTUS
                         500,000 shares of Common Stock
                                $0.10 per share

                                  WINMARK, INC.

Prior to this offering,  there has been no public market for our securities.  We
intend to offer,  sell and  distribute  publicly not less than 50,000 shares our
securities at an offering price of $0.10 per share,  for an offering of $50,000.
Our offering is being offered on a "best efforts", "all-or-none" basis during an
offering  period of 90 days that may be extended for an  additional  90 days. If
less than  $50,000 is received  from the sale of the shares  within the offering
period,  all  investors'  funds will be promptly  refunded  without  interest or
deduction for commission or other expenses.

Subscribers  will not be able to obtain  return of their  funds while in escrow.
There will be a minimum  purchase of 5,000 shares at $500.  The  securities  and
proceeds of this offering will be held in an escrow account until the closing of
this  offering  and the closing of a business  opportunity,  such as a merger or
acquisition.

We intend to offer our  securities  directly to the public only through our sole
officer and  director  in those  jurisdictions  where sales by such  persons are
permitted by law. No  broker-dealer  will be used to offer our securities to the
public  and no  commissions  will be paid to any third  party.  The price of our
securities has been arbitrarily  determined,  and does not bear any relationship
to our  assets,  book  value,  net worth or results of  operations  or any other
established criteria of value.


                   Investing in our securities involves risk.
                     See "Risk Factors" beginning on page 9.


                                      Offering Costs(2),      Net
                           Price to     Discounts and       Proceeds
                            Public      Commissions(3)
                         ------------ ----------------- -------------
Per share                       $0.10     $0.00
                                                               $0.10
Aggregate Offering Amount  $50,000.00     $0.00           $50,000.00

____________________________________
(2)  Offering costs of approximately  $22,000 are being paid out of pre-offering
     working capitol.
(3)  No commissions will be paid nor discounts given.

Neither  the  Securities  and  Exchange  Commission  nor  any  state  securities
commission has approved or disapproved of these securities or determined if this
prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.

The date of this prospectus is May 10, 2004.

                                       4





                                TABLE OF CONTENTS
                             -----------------------
                                                                         Page

Prospectus Summary .....................................................6
Risk Factors............................................................7
Use of Proceeds.........................................................12
Dilution................................................................13
Dividend Policy.........................................................14
Management's Plan of Operation..........................................14
Proposed Business.......................................................15
Management..............................................................25
Principal Stockholders..................................................26
Certain Relationships and Related Transactions..........................26
Description of Securities...............................................26
Plan of Distribution....................................................28
Legal Proceedings.......................................................30
Legal Matters...........................................................30
Experts.................................................................30
Where You Can Find More Information.....................................30
Index to Financial Statements...........................................32
Report of Independent Certified Public Accountants......................32
Information not Required in Prospectus..................................41
Exhibits................................................................43
Undertakings............................................................44
Signatures..............................................................45

                                       5


                             Reliance on Prospectus

You should rely only on the information contained in this prospectus or to which
we have  referred  you.  We have  not  authorized  anyone  to  provide  you with
information  that is  different.  This  prospectus  may be used only where it is
legal to sell  these  securities.  The  information  in this  prospectus  may be
accurate only on the date of this prospectus.


                               PROSPECTUS SUMMARY

                                   The Company

Winmark, a development stage  corporation,  was organized to provide a corporate
entity in order to participate in certain business opportunities that arise from
time to time. We are a blank check company and are subject to certain regulatory
requirements  imposed by Rule 419 of Regulation C under the  Securities  Act. We
believe that following this offering certain business  opportunities  may become
available to us due primarily to our status as a reporting publicly held company
with liquid assets and to our  flexibility in structuring and  participating  in
certain business  combinations,  such as mergers and acquisitions.  However,  we
have  no  plans,  proposals,  arrangements,   understandings  or  agreements  to
participate in any specific business opportunity.


Winmark was originally incorporated in Nevada on December 22, 2003. On April 19,
2004 we filed a Certificate of Amendment  with the State of Nevada  changing our
name to  Winmark,  Inc.  In this  prospectus,  we  refer  to  Winmark,  Inc.  as
"Winmark",  "we" and "us." Our principal  executive offices are located at 607 E
Street, S.E. Washington, D.C. 20003.

                                  The Offering


Securities Offered by Winmark, Inc.:             500,000 shares
Shares Outstanding Prior to Offering             5,000,000 shares
Shares Outstanding After Offering:               5,500,000 shares
Comparative Share Ownership Upon Completion of
Offering:
 Current Shareholders (5,000,000 shares)         90.91%
 Public Shareholders (500,000 shares)            9.09%

Use of Proceeds                                  Business
                                                 development; working capital as
                                                 utilized by prospective
                                                 business opportunity candidate.


Winmark  is  offering  500,000  shares at $0.10  per share on a "best  efforts",
"all-or-none  basis." The public  offering  price of the shares was  arbitrarily
determined by us and does not  necessarily  relate to our assets,  book value or
results of operations or any other established criteria of value.

The  securities  and proceeds of this offering  shall remain in escrow until the
closing of this  offering and the closing of a business  opportunity,  such as a
merger or acquisition.

                                       6


PROSPECTUS SUMMARY - continued

                             Selected Financial Data

                The following table sets forth selected financial
                        information concerning Winmark:

                                                December 31,
                                                    2003
                                               --------------

Balance Sheet:
  Current assets                                $       0
  Total assets                                          0
  Current liabilities                                   0
  Working capital                                       0
  Stockholders' equity
  Net tangible book value per share             $       0

Statement of Operations:
  Revenue                                       $       0
  Total expenses                                   22,000
  Net loss                                      $ (22,000)


The "Selected Financial Data" is a summary only and has been derived from and is
qualified  in its  entirety by  reference  to  Winmark's  financial  statements,
included in this prospectus.


                                  RISK FACTORS

The  securities  offered  are highly  speculative  in nature and  involve a high
degree of risk.  They should be purchased only by persons who can afford to lose
their entire investment.  Therefore,  each prospective investor should, prior to
purchase, consider very carefully the following risk factors among other things,
as well as all other  information  set forth in this  prospectus.  We may not be
able to continue to operate as a going concern.

Our ability to operate as a going  concern is dependant  upon the  completion of
this offering and the closing of a business opportunity, such as the merger with
or  acquisition  of an  operating  business.  If we receive less than all of the
proceeds  as a result of later  refunds  under  Rule 419,  we may be  materially
adversely  affected  to the  extent  that we may not be  able to  implement  the
business  plan  of  our  business   opportunity  and  we  may,   otherwise,   be
undercapitalized  such that we may not have  enough  capital  to  implement  and
maintain our business operations. These requirements will significantly increase
our time and costs of doing  business,  which may also have a  material  adverse
effect on us.

Our sole  director and officer is  inexperienced  in the  management  of a blank
check company.

Our sole  director  and  officer,  Mark  Winstein,  has no prior  experience  in
managing a blank check company or in merger and acquisition transactions.  While
Mr. Winstein has experience as an environmental  consultant, he is inexperienced
in other industries  outside the environmental area that we may seek to locate a
merger or acquisition  candidate.  Mr. Winstein's  inexperience could hinder our
ability to locate a suitable  merger or  acquisition  candidate and consummate a
successful  transaction with such a candidate.  We have no employment  agreement
with our sole officer and director.

                                       7


RISK FACTORS - continued

Mr.  Winstein's  term as our sole  director and officer  expires on December 21,
2004. We presently  have no  employment  agreement  with Mr.  Winstein nor do we
intend to enter into such an agreement in the foreseeable  future.  Further,  we
have no agreement  currently in place with Mr.  Winstein for his services beyond
his initial term.  Thus he could elect to resign his position  without  recourse
before the expiration of his term or before the completion of this offering. Our
business is difficult  to evaluate  because we have no  operating  history.  Our
operations  are subject to all of the risks inherent in the  establishment  of a
new business enterprise, including, but not limited to:


     o    the absence of an operating history;

     o    the  problems,  expenses,   difficulties,   complications  and  delays
          frequently encountered by a new business; and

     o    we have not been in business long enough to enable an investor to make
          a reasonable judgment as to our future performance.


Decisions  as  to  which   business   opportunity  to  participate  in  will  be
unilaterally made by our sole officer and director,  Mark Winstein,  who may act
without the  consent,  vote or approval of our  shareholders.  We have no plans,
proposals,  arrangements,  understandings  or agreements to  participate  in any
specific business  opportunity,  such that, among other aforementioned  factors,
this offering is a "blank check" offering.

Our business will have no revenues  unless and until we merge with or acquire an
operating business.

We are a development stage company and have had no revenues from operations.  We
may not  realize any  revenues  unless and until we  successfully  merge with or
acquire an operating business.

We intend to issue more shares in a merger or acquisition,  which will result in
substantial dilution.

Our  certificate  of  incorporation  authorizes  the  issuance  of a maximum  of
25,000,000  shares of common stock,  $.001 par value.  Any merger or acquisition
effected  by us may result in the  issuance  of  additional  securities  without
shareholder approval and may result in substantial dilution in the percentage of
our common stock held by our then existing  shareholders.  Moreover,  the common
stock issued in any such merger or acquisition  transaction  may be valued on an
arbitrary or non-arms-length basis by our management, resulting in an additional
reduction  in  the  percentage  of  common  stock  held  by  our  then  existing
shareholders.

We have substantial competition for business opportunities, which may affect our
ability to merge with or acquire a business.

We are and will continue to be an  insignificant  participant in the business of
seeking  business  opportunities.  A substantial  number of established and well
financed entities,  including investment banking and venture capital firms, have
recently increased their merger and acquisition activities,  especially.  Nearly
all such entities have  substantially  greater  financial  resources,  technical
expertise and managerial capabilities than we have and, consequently, we will be
at a competitive  disadvantage  in  identifying  suitable  merger or acquisition
candidates and successfully concluding a proposed merger or acquisition.

                                       8


RISK FACTORS - continued

We  have   conducted   no  market   research  or   identification   of  business
opportunities, which may affect our ability to identify a business to merge with
or acquire.

We have neither conducted nor have others made available to us results of market
research concerning prospective business  opportunities.  Therefore,  we have no
assurances that market demand exists for a merger or acquisition as contemplated
by us. Mr.  Winstein has not  identified  any specific  business  combination or
other transactions for formal evaluation,  such that it may be expected that any
such  target  business or  transaction  will  present  such a level of risk that
conventional  private or public  offerings of  securities or  conventional  bank
financing  will not be available.  There is no assurance that we will be able to
acquire a business  opportunity on terms favorable to us.  Decisions as to which
business  opportunity  to  participate  in  will  be  unilaterally  made  by Mr.
Winstein, who may act without the consent, vote or approval of our shareholders.


Our offering is  significantly  regulated by Rule 419 of  Regulation C under the
Securities  Act, which will  significantly  increase our time and costs of doing
business.

      Rule 419 of Regulation C under the Securities Act generally requires:

     o    the  deposit of the  securities  and  proceeds  of our  offering in an
          escrow  account,  and that the  investors may not have access to their
          securities  and  funds  for  up to 18  months  from  the  date  of the
          prospectus;

     o    that if the  money  is  returned  to the  investors  they  will not be
          receiving interest on their funds; and

     o    that if a  significant  number of  investors  do not  reconfirm  their
          investment,  the  business  combination  may  not be  closed  and  the
          investors will not be issued their securities.



In a best efforts  distribution  of securities  conducted on an "all or nothing"
basis,  or on any other  basis in which  payment  will not be made to the issuer
until some further event or contingency  occurs,  Rule 15c2-4 under the Exchange
Act requires that a broker-dealer  participant be obligated to either  segregate
funds  received in a separate bank account,  as agent or trustee,  or to deposit
promptly such funds with a bank pursuant to a written escrow agreement,  pending
the  occurrence of the  contingency.  Broker-dealers  that do not carry customer
accounts or that are affiliated  with the issuer must deposit  offering funds in
an escrow account established at a bank.

In contingency  offerings,  Rule 419 provisions relating to the release of funds
and Exchange Act Rule 10b-9  obligations  will apply.  Rule 10b-9 prohibits as a
"manipulative  or deceptive  device or  contrivance"  under Section 10(b) of the
Exchange Act any representations  that a security is being offered on an "all or
none" or "part or none" basis,  unless prompt  refunds are made to purchasers if
the  represented  number of securities is not sold at the specified price within
the  specified  time and the total  amount due the seller is not received by the
seller by the specified  date.  Also, Rule 15c2-4 does not permit the payment of
underwriting  commissions  or  disbursal  of  deposited  funds to us  until  the
specified  contingency  is  satisfied.  With  respect to a blank check  offering
subject to both Rule 419 and Rule 15c2-4,  the  requirements  of Rule 15c2-4 are

                                       9


RISK FACTORS - continued

applicable  only until the conditions of the offering  governed by that Rule are
met, for example, reaching the total offering amount in an all-or-none offering,

such as our offering. Upon satisfaction of these conditions,  Rule 419 continues
to govern the use of offering proceeds.

Just as with Rule 15c2-4, for blank check offerings subject to both Rule 419 and
Rule 10b-9,  the  requirements  of Rule 10b-9 apply until the  conditions of the
offering governed by that Rule are met, for example, reaching the total offering
amount  in an  all-or-none  offering.  Upon  satisfaction  of  Rule  10b-9,  the
provisions  of Rule 419 will  continue  to  govern.  Since we are a blank  check
company  filing our initial  registration  statement  for a contingent  offering
subject  to Rule  10b-9,  the  provisions  of the  Rule  apply  only  until  the
conditions  subject  to that  Rule  are  met,  but  after  satisfaction  of such
conditions  an investor  is not  guaranteed  a return of proceeds  even if, as a
result of investor refund requests under 419, the Rule 10b-9 conditions would no
longer be met.

We may be  regulated  under  the  Investment  Company  Act of 1940,  which  will
significantly increase our compliance costs.

Although  we will be  subject to  regulation  under the  Securities  Act and the
Exchange  Act, we believe  that we will not be subject to  regulation  under the
Investment  Act  insofar  as (i) we  will  not be  engaged  in the  business  of
investing  or  trading  in  securities,  and (ii) we will  attempt  to  obtain a
controlling  interest  in any  merger  or  acquisition  candidate.  We have  not
obtained a formal  determination  from the Commission as to our status under the
Investment Act and,  consequently,  any violation of such  Investment Act or any
proposed  activities which may bring it within the Investment Act may subject us
to  material  adverse  consequences,   including  significant  registration  and
compliance costs. Because we do not intend to register under the Investment Act,
investors will not have the benefit of the various protective provisions imposed
on investment companies,  including  requirements for independent board members,
mandated by such Investment Act.

We may be  subject  to  certain  tax  consequences  in our  business,  which may
increase our costs of doing business.

In the course of any merger or acquisition that we may undertake,  a substantial
amount of attention will be focused upon federal and state tax  consequences  to
both us and the "target" company. Presently, under the provisions of federal and
various  state  tax laws,  a  qualified  reorganization  between  entities  will
generally  result in tax-free  treatment  to the parties to the  reorganization.
While we expect to undertake any merger or acquisition so as to minimize federal
and state tax  consequences  to both us and the  "target"  company,  there is no
assurance that such business combination will meet the statutory requirements of
a reorganization or that the parties will obtain the intended tax-free treatment
upon a transfer of stock or assets. A non-qualifying  reorganization  may result
in the  imposition  of both  federal  and state  taxes  that may have a material
adverse effect on us.

We may need  additional  capital to fund our  operations  and finance our growth
beyond the initial 18 months  operating  period and we may not be able to obtain
it on terms acceptable to us or at all.

Mr. Winstein  intends to fund our operations and other capital needs,  which are
anticipated  to be minor,  for the next 18 months until such time as the closing
of this offering and the closing of a business opportunity,  such as a merger or

                                       10


RISK FACTORS - continued

acquisition.  We do not anticipate requiring additional funds during the next 18
months.  Our plan of operation  following  the  effective  date of this offering
encompasses a merger with or acquisition of an operating  business,  but we will
not know  what our cash  requirements  will be  until we close  such  merger  or
acquisition.  We will not use any of the  proceeds of this  offering  unless and
until we close  this  offering  and close a  business  opportunity.  Should  the
business  opportunity  have  profitable  operations,  its capital  needs may not
require the use of our  proceeds  that,  in such event,  will be held as working
capital for future contingencies.  We have made no arrangements to obtain future
additional financing beyond this 18 months period, if required, and there can be
no assurance that such financing will be available, or that it will be available
on terms acceptable to us.

Rule 419 requires the deposit of the  securities and proceeds of the offering in
an escrow account, which affects the liquidity for the escrowed securities.

Rule 419 of Regulation C under the Securities Act generally requires among other
things,  the deposit of the securities and proceeds of the offering in an escrow
account.  During the term of the escrow,  there is no liquidity for the escrowed
securities  since  they may not be offered  and sold,  which may have a material
adverse effect on your investment.  The securities sold in this offering will be
held in an escrow  account  and you will not be able to sell them until they are
released upon the  consummation of a business  opportunity,  such as a merger or
acquisition.  The  securities  may be held as long as 18 months from the date of
this prospectus.

Our management has other financial and business interests to which a significant
amount of time is devoted, which may pose significant conflicts of interest.

Because Mr.  Winstein has other financial and business  interests,  conflicts of
interest may arise which may compete for his services and time. Mr. Winstein has
no plans, proposals,  arrangements,  understandings or agreements to participate
with any specific business opportunity with us. Mr. Winstein may, in the future,
hold similar  positions in other blank check companies,  which may conflict with
the interests of Winmark.  Conflicts may also arise in important matters such as
identifying  and selecting a merger or  acquisition  candidate.  There can be no
assurance that Mr. Winstein will resolve all conflicts of interest in our favor.

Purchase of our securities involves suitability standards,  which may limit your
ability to participate in our offering.

Purchase  of our  securities  offered  hereby is  suitable  only for  accredited
investors  who  have no need  for  liquidity  in this  investment  and who  have
adequate   means  of  providing  for  their  annual  needs  and   contingencies.
Accordingly,  our  securities  offered  hereby will not be sold to a prospective
accredited  investor,  as  defined  in Rule 501 of  Regulation  D,  unless  such
investor:  (i) has a net  worth  (inclusive  of  homes,  personal  property  and
automobiles) of at least $1 million,  or (ii) has during the last two years, and
expects to have  during the  current  year,  gross  income from any source of at
least $200,000.

This prospectus contains forward-looking  statements and information relating to
us, our industry and to other businesses.  These forward-looking  statements are
based on the  beliefs  of our  management,  as well as  assumptions  made by and
information currently available to our management. When used in this prospectus,
the words "estimate," "project," "believe," "anticipate," "intend," "expect" and
similar expressions are intended to identify forward-looking  statements.  These
statements  reflect  our  current  views with  respect to future  events and are

                                       11


RISK FACTORS - continued

subject to risks and  uncertainties  that may cause our actual results to differ
materially from those contemplated in our forward-looking statements. We caution
you not to place undue reliance on these forward-looking statements, which speak
only as of the date of this  prospectus.  We do not undertake any  obligation to
publicly  release any revisions to these  forward-looking  statements to reflect
events or  circumstances  after the date of this  prospectus  or to reflect  the
occurrence of unanticipated events.



                                USE OF PROCEEDS.

Mr.  Winstein  estimates we will receive net proceeds of  approximately  $50,000
from our sale of 500,000  shares  offered by us. This  estimate is based upon an
offering  price of $0.10  per  share  of  common  stock  with no  deduction  for
estimated   offering  expenses  as  these  costs  are  being  paid  out  of  our
pre-offering  working  capital.  Also, we will pay no  commissions  or offer any
discounts.  These proceeds will be utilized in order of priority as listed below
for approximately 18 months substantially as follows:


             Use of         Net Offering        %
            Proceeds         Proceeds
            ----------------------------------------
            Business          $ 45,000         90.00
            development

            Working capital      5,000         10.00
                            ----------    ----------
                              $ 50,000        100.00



Since this offering is a "blank check"  offering,  and we have not  identified a
business  opportunity,  the use of proceeds of this offering cannot be described
with specificity. We have no plans, proposals,  arrangements,  understandings or
preliminary agreements to participate in any specific business opportunity.  All
of the net proceeds will be utilized by our merger or acquisition  candidate for
the development of its business and for working capital. Uses of working capital
will  include,  but not be limited  to,  general  and  administrative  salaries,
exclusive  of  management  salaries,   associated  benefits,  office  lease  and
expenses.  The salaries of the management of the business opportunity  candidate
will be paid from such  company's  cash flow and not from the  proceeds  of this
offering.

We intend to escrow all of the proceeds of this offering with  Manufacturers and
Traders Trust  Company,  a New York banking  company,  until the closing of this
offering  and the  closing  of a  merger  with  or  acquisition  of a  business.
Following the completion of a merger with or  acquisition of a business,  all of
the net proceeds will be used for business development and working capital.

Working capital will be utilized by us to enhance and, otherwise, stabilize cash
flow during the initial 18 months of operations  following  the  completion of a
merger with or acquisition of a business,  such that any shortfalls between cash
generated  by operating  revenues and costs will be covered by working  capital.
Our working  capital may also be used for unforeseen  requirements.  Although we
prefer to retain our working  capital in  reserve,  we may be required to expend
part or all of these  proceeds  as  financial  demands  dictate.  We may find it

                                       12


RISK FACTORS - continued

necessary or  advisable  to use  portions of the  proceeds  for other  purposes.
Pending  application of the net proceeds as described  above,  we may invest the
net  proceeds  of  this  offering  in  insured,  short-term,   investment-grade,
interest-bearing securities.

                                    DILUTION

"Dilution"  is the  difference  between the offering  price and the net tangible
book value of our shares of common stock  immediately  after the offering.  "Net
tangible  book value" is  determined  by dividing the number of shares of common
stock issued and outstanding  into our net tangible worth (tangible  assets less
liabilities).

Our net tangible  book value at December 31, 2003,  was $5,000,  or $(0.001) per
share.  Our pro forma net  tangible  book value at the closing of this  offering
will be $50,000,  or $0.0091 per share,  assuming 500,000 shares are sold. These
computations,  which do not give  effect to  discounts  and  commissions  of the
offering as none are to be paid, represent an immediate increase in net tangible
book  value of $0.009 per share to present  shareholders  if the entire  500,000
shares offered are sold. These  computations  represent an immediate dilution of
$0.091 per share to public investors if the entire 500,000 shares are sold.

The following table  illustrates the dilution of a public investor's equity in a
share of common stock as of December 31, 2003, adjusted as described above.



                                                           Assuming Fully
                                                             Subscribed
                                                              Offering
                                                             -----------
Public offering price per share                               $      .10
Net tangible book value per share, before public offering     $     (.001)
Increase (to present shareholders) per share attributable
  to our proceeds from sale to public investors               $     0.009
Pro forma net tangible book value per share,
 after public offering                                        $     0.0091
Dilution of bookvalue per share to public investors           $     0.091


The public  investors  purchasing  the  securities  offered hereby for $0.10 per
share  will own  500,000  shares of our  common  stock,  or 9.09  percent of the
outstanding shares, for which they will have paid $50,000. Mr. Winstein will own
5,000,000  shares,  or 90.91 percent of the  5,500,000  shares that will then be
outstanding  upon  completion  of the  offering,  for  which he shall  have paid
$22,000.

The following  table  compares the public  offering price of $0.10 per share and
the  percentage  of our common stock to be owned by the public  investors  after
giving  effect  to this  offering,  with  the  cash  consideration  paid and the
percentage  of our common stock to be owned by Mark  Winstein,  our sole current
stockholder:

                                       13


DILUTION - continued




                                                           Average        Total           Percentage of
                           Shares        Percentage of    Price Per    Consideration          Total
                           Purchased     Total Shares       Share         Paid          Consideration Paid
                           ------------  ------------- -------------  --------------    -------------------
                                                                              
Shares to be Purchased by
Public Investors:          500,000          9.09         $0.10          $50,000          69.44%
Shares Purchased by Mark
Winstein:                  5,000,000        90.91        $0.0044        $22,000          30.56%

</table>

                                 DIVIDEND POLICY

We have never paid cash dividends on our common stock and have no plans to do so
in the foreseeable  future.  The declaration and payment of any dividends in the
future will be  determined by our board of directors and will depend on a number
of factors  including our earnings,  capital  requirements and overall financial
condition.

                         MANAGEMENTS' PLAN OF OPERATION

Our  plan of  operation  should  be  read  in  conjunction  with  our  financial
statements and the related notes that appear elsewhere in this  prospectus.  The
discussion contains forward-looking statements that reflect our plans, estimates
and beliefs of our  development  stage  company.  Our actual  results may differ
materially from those discussed in the forward-looking statements.  Factors that
may cause or contribute to these  differences  include,  but are not limited to,
those  discussed below and elsewhere in this  prospectus,  particularly in "Risk
Factors."

We have not had any revenues since  inception.  Our sole objective is to acquire
an operating business through a merger or acquisition.

Mr. Winstein  intends to fund our operations and other capital needs,  which are
anticipated  to be minor,  for the next 18 months until such time as the closing
of this offering and the closing of a business opportunity,  such as a merger or
acquisition.  We do not anticipate requiring additional funds during the next 18
months.  Our plan of operation  following  the  effective  date of this offering
encompasses a merger with or acquisition of an operating  business,  but we will
not know  what our cash  requirements  will be  until we close  such  merger  or
acquisition.  We will not use any of the  proceeds of this  offering  unless and
until we close this offering and close a business  opportunity.  Our  management
will bear the expense to locate and  identify an operating  business  candidate,
and those expenditures are expected to be minor. The expenses will be reimbursed
following  the  closing  of the  business  opportunity  with the  consent of the
business opportunity candidate.  Should the business opportunity have profitable
operations,  its capital needs may not require the use of our proceeds  that, in
such event, will be held as working capital for future contingencies. We have no
plans, proposals,  arrangements,  understandings or agreements to participate in
any specific business opportunity. We have made no arrangements to obtain future
additional financing beyond this 18 months period, if required, and there can be
no assurance that such financing will be available, or that it will be available
on terms acceptable to us.

                                       14


MANAGEMENTS' PLAN OF OPERATION - continued

Our ability to continue as a going concern is dependent  upon the  completion of
this offering.  In view of the limited  amount of funds  available to us in this
offering,  we may exhaust our limited  financial  resources  soon after we merge
with or acquire an operating business due to its financial demands.

Subsequent  to the  closing  of this  offering  and the  closing  of a  business
opportunity,  our  net  proceeds  will be for the  development  of the  business
opportunity and for working capital. The development of the business opportunity
may be hampered by our limited  resources and, as a result,  may have a material
adverse affect on our ability to continue as a going concern.


                                PROPOSED BUSINESS


Winmark,  a development  stage company,  was  incorporated in Nevada in December
2003.   Since   inception,   our   principal   activity  has  been  directed  to
organizational efforts.

Winmark was organized to provide a corporate  entity in order to  participate in
certain  business  opportunities  that arise from time to time.  We believe that
following this offering certain business  opportunities  may become available to
us due primarily to our status as a reporting  publicly held company with liquid
assets  and to our  flexibility  in  structuring  and  participating  in certain
business combinations, such as mergers and acquisitions. We will not participate
in any business  opportunity  for which  current  audited  financial  statements
cannot be obtained. Decisions as to which business opportunity to participate in
will be unilaterally made by Mr. Winstein, who may act without the consent, vote
or  approval of our  shareholders.  We have no plans,  proposals,  arrangements,
understandings   or  agreements  to   participate   in  any  specific   business
opportunity.

Certain  regulatory  requirements  apply to blank check  offerings,  such as our
offering. General requirements include:

     o    the  deposit of the  securities  and  proceeds  of the  offering in an
          escrow account;

     o    the disclosure of certain  offering terms of the escrow  agreement and
          information regarding a probable merger or acquisition;

     o    a post-effective amendment of a probable merger or acquisition;

     o    funds held in the escrow  account may be released to us and securities
          may be  delivered  to  the  purchasers  or  other  registered  holders
          identified  on the  deposited  securities  only at the same time as or
          after (i) the escrow agent has received a signed  representation  from
          us,   together  with  other  evidence   acceptable  to  it,  that  the
          requirements with respect to the terms of the offering and filing with
          the  Commission  have been met;  and (ii)  consummation  of a business
          opportunity, such as a merger or acquisition; and

     o    securities held in escrow may not be offered for sale or sold.

                                       15


PROPOSED BUSINESS - continued

The terms of the post-effective amendment must provide, and we must satisfy, the
following general conditions:

     o    delivery  of a  current  prospectus  contained  in the  post-effective
          amendment;

     o    notification  in  writing  that the  purchaser  elects  to  remain  an
          investor;

     o    the  acquisition  will  be  consummated  if  a  sufficient  number  of
          purchasers confirm their investment with us; and


     o    if an  acquisition  has not occurred  within 18 months  following  the
          effective  date of this  offering,  the  securities  and funds held in
          escrow shall be promptly returned to the purchasers.

Mr. Winstein has substantial experience in the area of environmental consulting.
Because of our limited  resources,  however,  it may be anticipated  that we may
acquire an interest in one or a few business opportunities to which Mr. Winstein
is exposed and which is determined to be reasonably suitable.

Persons  purchasing shares in this offering and other shareholders will not have
the opportunity to participate in any of our ordinary  business  decisions.  Our
proposed  business  is  characteristically  referred  to as a blind  pool  since
investors will entrust their investment funds to our management before they have
the  chance  to  analyze  any  ultimate  use to which  their  funds may be used.
Consequently,  our potential success is heavily  dependent on Mr. Winstein,  who
will have  unilateral  discretion  in  identifying  and entering into a business
opportunity, such as a merger or acquisition.

Mr.  Winstein  anticipates  that  we may be  able to  participate  in  only  one
potential business venture, due primarily to our limited financing. This lack of
diversification should be considered a risk factor in investing in us because it
will not permit us to offset  potential  losses from one venture  against  gains
from another.

There are no plans, proposals,  arrangements,  understandings or agreements with
respect to the sale of additional  securities to affiliates or others  following
the registered distribution herein and prior to the identification of a business
opportunity.

We have,  and will continue to have  following the  completion of this offering,
insufficient capital with which to provide the owners of business  opportunities
with any substantial cash or other assets.  However,  Mr. Winstein believes that
we will offer  owners of business  opportunities  the  opportunity  to acquire a
controlling  ownership  interest in a public company at substantially  less cost
than is required to conduct an initial public offering of securities. The owners
of the business  opportunities will, however,  incur significant  post-merger or
acquisition  registration  costs in the event they wish to register a portion of
their shares for subsequent sale. We will also incur  significant legal fees and
expenses in connection with the acquisition of a business opportunity including:


                                       16


PROPOSED BUSINESS - continued

     o    the costs of preparing  post-effective  amendments,  interim  reports,
          quarterly reports, annual reports and proxy materials; and

     o    legal fees and expenses incurred in the preparation of legal documents
          for mergers and acquisitions.


Nevertheless, Mr. Winstein has not conducted market research and is not aware of
statistical  data that  would  support  the  perceived  benefits  of a merger or
acquisition transaction for the owners of a business opportunity.


Compensation  may be paid or profit  transactions may occur in connection with a
merger or acquisition  by us by means of a stock  exchange  transaction or other
similar means,  including,  but not limited to,  payments of business  advisory,
legal and  accounting  fees,  sales of current  securities,  positions and other
methods of payment by which current security  holders receive funds,  securities
or other assets.

Following the closing of this offering,  we must maintain a current registration
statement that may require updating by the filing of a post-effective amendment.
A post-effective  amendment is required when facts or events have occurred which
represent a fundamental change in the information  contained in the registration
statement,  such as the  participation  in a business  opportunity  related to a
merger or acquisition.  Further,  upon the closing of the merger or acquisition,
the  successor  company  would  assume  significant   compliance  and  reporting
obligations and costs before the Commission,  including the filing of a Form 8-K
and a registration  statement with the Commission in order to become an Exchange
Act reporting company, which may have a material adverse effect on such company.

                           Evaluation of Opportunities

The analysis of new business  opportunities  will be  undertaken by or under the
supervision of Mr. Winstein.  Mr. Winstein intends to concentrate on identifying
preliminary   prospective  business  opportunities  upon  the  closing  of  this
offering.  Mr.  Winstein shall attempt to locate  suitable merger or acquisition
candidates  by  personally  contacting  his  network  of  professional  contacts
obtained over many years of providing  environmental  consulting services to the
private business sector.  We may retain paid outside business advisors to assist
in locating and evaluating business  opportunities.  Any cash fee earned by such
parties will need to be paid by the  prospective  merger/acquisition  candidate,
and such payment by the target  company shall be a condition for  consummating a
merger or  acquisition.  Members of our  management  will not be  entitled  to a
finder's fee for locating a merger or acquisition  candidate.  Such advisors, if
any, will not be affiliated  with us or our  management.  We have no preliminary
plans, proposals,  arrangements,  understandings or agreements with any party to
borrow funds to increase the amount of capital available.

                                       17


PROPOSED BUSINESS - continued

In analyzing prospective business opportunities, Mr. Winstein will consider such
matters as:

     o    the available technical, financial and managerial resources;

     o    working capital and other financial requirements;

     o    history of operations, if any;

     o    prospects for the future;

     o    nature of present and expected competition;

     o    the  quality  and  experience  of  management  services  which  may be
          available and the depth of that management;

     o    the potential further research, development or exploration;

     o    specific  risk  factors  not now  foreseeable  but  which  then may be
          anticipated to impact the proposed activities of us;

     o    the potential for growth or expansion;

     o    the potential for profit;

     o    the perceived public  recognition or acceptance of products,  services
          or trades;

     o    name identification; and

     o    other relevant factors.

Mr.  Winstein will meet personally with management and key personnel of the firm
sponsoring  the  business  opportunity  as part of their  investigation.  To the
extent  possible,  we  intend  to  utilize  written  reports  and  personal  and
professional  investigations  to evaluate the above  factors.  We will not merge
with or acquire any  company  for which  audited  current  financial  statements
cannot be obtained. Further, Mr. Winstein has passed a resolution that prohibits
us from  engaging  in an  acquisition  or  merger  with any  entity in which Mr.
Winstein or his affiliates or associates serve as an officer or director or hold
an ownership interest.


                          Acquisition of Opportunities

In implementing a structure for a particular business acquisition, we may become
a party to a merger, consolidation,  reorganization,  joint venture or licensing
agreement  with another  corporation  or entity.  We may also purchase  stock or
assets of any existing  business.  On the  consummation of a transaction,  it is
possible that our present  management and shareholders will not be in control of
Winmark.  In  addition,  our  management  may,  as  part  of  the  terms  of the
acquisition transaction, resign and be replaced by new management without a vote
of our shareholders.

It is anticipated that any securities issued in any such reorganization would be
issued in reliance on exemptions from registration  under applicable federal and
state securities laws. In some  circumstances,  however, as a negotiated element
of this transaction, we may agree to register such securities either at the time

                                       18


PROPOSED BUSINESS - continued

the transaction is consummated,  under certain  conditions or at specified times
thereafter.   The  issuance  of  substantial  additional  securities  and  their
potential  sale into any trading  market that may develop in our  securities may
have a depressive and material adverse effect on such market.


While the actual  terms of a  transaction  to which we may be a party  cannot be
predicted,  it may be expected that the parties to the business transaction will
find it desirable to avoid the creation of a taxable event and thereby structure
the  acquisition  in a so-called  "tax-free"  reorganization  under the Internal
Revenue Code of 1986, as amended.  In order to obtain  tax-free  treatment under
the Code, it may be necessary for the owners of the acquired  business to own 80
percent or more of the voting stock of the surviving  entity. In such event, our
shareholders,  including  investors in this offering,  will retain 20 percent or
less of the issued and outstanding  shares of the surviving  entity,  which will
result in significant dilution in the equity of such shareholders.

As part of our investigation,  Mr. Winstein will meet personally with management
and key personnel, may visit and inspect facilities, obtain independent analysis
or verification of certain information provided,  check references of management
and key personnel and take other reasonable and investigative  measures, as part
of its due  diligence,  to the extent of our limited  resources  and  management
expertise.

The manner in which we participate  in an opportunity  will depend on the nature
of the  opportunity,  our respective  needs and desires and other  parties,  the
management of the  opportunity  and our relative  negotiating  strength and such
other management.

With respect to any mergers or  acquisitions,  negotiations  with target company
management  will be expected  to focus on the  percentage  of our  company  that
target company shareholders would acquire in exchange for their shareholdings in
the target company.  Depending upon,  among other things,  the target  company's
assets and liabilities,  our  shareholders  will in all likelihood hold a lesser
percentage  ownership  interest in us following any merger or  acquisition.  The
percentage  ownership  may be subject to  significant  reduction in the event we
acquire a target  company with  substantial  assets.  Any merger or  acquisition
effected  by us can be  expected to have a  significant  dilutive  effect on the
percentage  of  shares  held  by  our  then  existing  shareholders,   including
purchasers in this offering.

Securities  owned or controlled by Mr. Winstein will not be sold in any business
combination  transaction  without  affording all of our  shareholders  a similar
opportunity.

It is  unlikely  that we will have  sufficient  funds from the  proceeds of this
offering to undertake any significant  development,  marketing and manufacturing
of any products that may be acquired. Accordingly,  following the acquisition of
such product, we will, in all likelihood,  be required to either seek additional
debt or equity  financing or obtain funding from third parties,  in exchange for
which we would  probably  be required  to give up a  substantial  portion of our
interest in any acquired product.  There is no assurance that we will be able to
either  obtain  additional  financing  or interest  third  parties in  providing
funding for the further development, marketing and manufacturing of any products
acquired.

                                       19


PROPOSED BUSINESS - continued

We will  participate in a business  opportunity  only after the  negotiation and
execution  of  appropriate  written  agreements.  Although  the  terms  of  such
agreements cannot be predicted,  generally such agreements will require specific
representations  and  warranties  by all of the parties  thereto,  will  specify
certain events of default, will detail the terms of closing and conditions which
must be satisfied by each of the parties prior to such closing, will outline the
manner  of  bearing  costs if the  transaction  is not  closed,  will set  forth
remedies on default and will include miscellaneous other terms.


It is anticipated that the investigation of specific business  opportunities and
the  negotiation,  drafting  and  execution of relevant  merger and  acquisition
agreements,  disclosure documents and other instruments will require substantial
management time and attention and  significant  fees and expenses for attorneys,
accountants  and others.  If a decision is made not to participate in a specific
business  opportunity,  the costs and expenses therefore incurred in the related
investigation  would not be  recoverable.  Futhermore,  even if an  agreement is
reached for the participation in a specific business opportunity, the failure to
consummate  that  transaction  may result in the loss to us of the related costs
and expenses incurred.

Mr. Winstein  believes that we may be able to benefit from the use of "leverage"
in the acquisition of a business opportunity.  Leveraging a transaction involves
the acquisition of a business  through  incurring  indebtedness for a portion of
the purchase price of that business.  Through a leveraged transaction,  we would
be able to  participate  in a larger  venture  to have  funds  available  to the
operations  of the  business  opportunity,  the  acquisition  of other  business
opportunities  or to other  activities.  The  borrowing  involved in a leveraged
transaction  will  ordinarily be secured by our combined assets and the business
opportunity to be acquired. If the combined enterprises are not able to generate
sufficient  revenues  or make  payments  on the debt  incurred  to acquire  that
business opportunity, the lender would be able to exercise the remedies provided
by law or by contract. These leveraging techniques, while reducing the amount of
funds  that  we  must  commit  to  a  business   opportunity   acquisition   may
correspondingly  increase our risk of loss.  No assurance can be given as to the
terms or the availability of financing for any acquisition by us. During periods
when interest rates are relatively  high, the benefits of the leveraging are not
as great as during periods of lower interest rates because the investment in the
business  opportunity  held on a leveraged  basis will only be  profitable if it
generates  sufficient  revenues to cover the related debt and other costs of the
financing.  Lenders  from which we may obtain  funds for purposes of a leveraged
buyout may impose  restrictions on our future borrowing,  dividend and operating
policies.  It is not possible at this time to predict the restrictions,  if any,
which lenders may impose or the impact thereof on us.

Our  operations   following  our  acquisition  of  an  interest  in  a  business
opportunity  will be  dependent  on the nature of the  opportunity  and interest
acquired.  We are  unable  to  predict  whether  we  will be in  control  of the
opportunity or whether present management will be in control of us following the
acquisition.  It may be  expected  that the  business  of the  opportunity  will
present  various  risks to  investors,  certain  of which  have  been  generally
summarized herein.

                                       20


PROPOSED BUSINESS - continued

                                  Regulation

             Your Rights and Substantive Protections Under Rule 419

                   Deposit of Offering Proceeds and Securities

The Securities Act imposes certain regulatory requirements on blank check
offerings, such as our offering. In particular, Rule 419 of Regulation C under
the Securities Act generally requires:

     o    the  deposit of the  securities  and  proceeds  of the  offering in an
          escrow account;

     o    the disclosure of certain  offering terms of the escrow  agreement and
          information regarding a probable merger or acquisition;

     o    a post-effective amendment of a probable merger or acquisition; and

     o    the disclosure of certain conditions on the release of deposited funds
          and securities of the offering.

For  purposes  of Rule 419, a blank check  offering is a company,  such as ours,
that is a  development  stage  company  that has no  specific  business  plan or
purpose  or has  indicated  that its  business  plan is to engage in a merger or
acquisition with an unidentified company or companies.  Rule 419 also applies in
its  entirety to the offering by the selling  security  holders,  including  the
escrow  of  their   securities  and  funds  until  the  closing  of  a  business
opportunity, such as a merger with or acquisition of an operating company.

We have  established  an escrow  account  for the funds  and  securities  of our
offering  with  Manufacturers  and  Traders  Trust  Company,   an  FDIC  insured
depository  institution,  in compliance  with the  Securities  Act. If funds and
securities  are  deposited  into an  escrow  account  maintained  by an  insured
depository institution, the Act requires that the deposit account records of the
insured  depository  institution  must provide that funds and  securities in the
escrow account are held for the benefit of the  purchasers  named and identified
in accordance with the regulations of the Federal Deposit Insurance Corporation,
and the records of the escrow agent, maintained in good faith and in the regular
course  of  business,  must  show  the name and  interest  of each  party to the
account.

All offering  proceeds  shall be  deposited  promptly  into the escrow  account;
provided,  however, that no deduction may be made for underwriting  commissions,
underwriting expenses or dealer allowances payable to an affiliate of us.

We intend to invest the  deposited  proceeds of our offering  into an obligation
that  constitutes  a "deposit,"  as that term is defined in the Federal  Deposit
Act, or in securities that are direct obligations of, or obligations  guaranteed
as to  principal  or interest  by, the United  States,  in  compliance  with the
Securities Act.

Interest or dividends  earned on the funds,  if any, shall be held in the escrow
account  until the funds are released.  If funds held in the escrow  account are
released to a purchaser of the securities, the purchasers shall receive interest
or dividends earned,  if any, on such funds up to the date of release.  If funds
held in the escrow account are released to us,  interest or dividends  earned on
such funds up to the date of release may also be released to us.

                                       21


PROPOSED BUSINESS - continued

All  securities  issued in connection  with the offering,  including  securities
offered by selling security holders, whether or not for cash consideration,  and
any  other  securities  issued  with  respect  to  such  securities,   including
securities  issued with  respect to stock  splits,  stock  dividends  or similar
rights,  shall be  deposited  directly  into the escrow  account  promptly  upon
issuance  until the  closing  of this  offering  and the  closing  of a business
opportunity,  such as a merger or  acquisition,  and until  the  conditions  for
release of  deposited  funds and  securities  have been met. The identity of the
purchaser of the securities shall be included on the stock certificates or other
documents evidencing such securities.

Securities  held in the escrow account are to remain as issued and deposited and
shall be held for the sole  benefit of the  purchasers,  who shall  have  voting
rights,  if any, with respect to securities  held in their names, as provided by
applicable state law. No transfer or other disposition of securities held in the
escrow  account or any interest  related to such  securities  shall be permitted
other than by will or the laws of descent  and  distribution  or  pursuant  to a
qualified  domestic  relations order as defined by the Internal  Revenue Code of
1986, as amended, or the Employee Retirement Income Security Act, as amended.

A copy of the escrow  agreement,  which outlines the terms and conditions above,
has been  included as an exhibit to our  registration  statement,  of which this
prospectus forms a part.


         Prescribed Acquisition Criteria and Post-Effective Amendment

If, during any period in which offers or sales of our securities are being made,
a significant merger or acquisition  becomes probable,  we shall promptly file a
post-effective  amendment disclosing the information specified by the applicable
registration  statement form, including our financial statements and the company
to be  merged  with  or  acquired  as well as pro  forma  financial  information
required by the form and applicable rules and regulations.

Upon the  execution of any  agreement  for the merger with or  acquisition  of a
business or assets that will constitute our business and which the fair value of
the business or net assets to be acquired  represents at least 80 percent of the
maximum  offering  proceeds,  including  proceeds  received or to be received by
selling  security  holders and upon the exercise or conversion of any securities
offered,  but  excluding  amounts  payable to  non-affiliates  for  underwriting
commissions,  underwriting  commissions and dealer  allowances,  we shall file a
post-effective amendment that:

     o    discloses the  information  specified by the  applicable  registration
          statement  form,  including our financial  statements  and the company
          acquired  or  to be  acquired  and  pro  forma  financial  information
          required by the form and applicable rules and regulations; and

     o    discloses  the results of our  initial  offering,  including,  but not
          limited to the gross offering  proceeds  received to date,  specifying
          the amounts paid for underwriting  commissions,  underwriting expenses
          and dealer  allowances,  amounts disbursed to us and amounts remaining
          in the escrow account; and the specific amount, use and application of
          funds  disbursed  to us to date,  including,  but not  limited to, the
          amounts   paid  to   officers,   directors,   promoters,   controlling
          shareholders or affiliates, either directly or indirectly,  specifying
          the amounts and purposes of such payments;  and discloses the terms of
          the offering. Reconfirmation of Offering

                                       22


PROPOSED BUSINESS - continued

The terms of the offering must provide, and we must satisfy, the following
conditions:

     o    within  five   business   days  after  the   effective   date  of  the
          post-effective  amendment,  we shall send by first  class mail to each
          purchaser  of  securities  held in  escrow,  a copy of the  prospectus
          contained  in  the  post-effective  amendment  and  any  amendment  or
          supplement thereto;

     o    each  purchaser  shall have no fewer than 20 business days and no more
          than 45 business  days from the effective  date of the  post-effective
          amendment to notify us in writing that the purchaser  elects to remain
          an investor.  If we have not received such written notification by the
          45th business day following the effective  date of the  post-effective
          amendment,  funds and  interest  or  dividends,  if any held in escrow
          shall be sent by first class mail or other equally prompt means to the
          purchaser within five business days; should we return investors' funds
          under Rule 419 and only  satisfy the minimum  offering,  it may have a
          material adverse effect on our ability to implement our business plan;

     o    the  acquisition   meeting  the  criteria  set  forth  above  will  be
          consummated  if  a  sufficient  number  of  purchasers  confirm  their
          investment with us; and

     o    if a consummated  acquisition  meeting the requirements  above has not
          occurred by a date 18 months after the  effective  date of our initial
          registration  statement,  funds held in escrow  shall be  returned  by
          first class mail to the purchasers within five business days following
          that date.

          Release of Securities and Funds

Funds held in the escrow  account may be released  to us and  securities  may be
delivered  to the  purchasers  or other  registered  holders  identified  on the
deposited securities only at the same time as or after:

     o    the  escrow  agent  has  received  a  signed  representation  from us,
          together with other evidence  acceptable to it, that the  requirements
          with  respect  to the  terms  of the  offering  and  filing  with  the
          Commission when we sign an agreement as described above have been met;
          and

     o    consummation   of  an   acquisition   meeting   the  above   described
          requirements.

If funds and  securities are released from the escrow account to us as described
above,  our prospectus  will be supplemented to indicate the amount of funds and
securities released and the date of the release.

We will furnish to our security  holders  audited  financial  statements for our
first full fiscal year of operations  following  consummation of an acquisition,
together with other required  information no later than 90 days after the end of
the fiscal year and file the financial  statements  and  additional  information
with the Commission.

If a  consummated  acquisition  meeting  the  criteria  described  above has not
occurred within 18 months after the date of this  prospectus,  funds held in the
escrow account will be returned to the purchasers.

                                       23


PROPOSED BUSINESS - continued

Also,  pursuant to the terms of the escrow  agreement,  funds held in the escrow
account may be released to us and  securities may be delivered to the purchasers
or other registered holders  identified on the deposited  securities only at the
same time as or after:

     o    the  escrow  agent  has  received  a  signed  representation  from us,
          together with other evidence  acceptable to the escrow agent, that the
          above requirements have been met; and

     o    the consummation of the merger or acquisition has occurred.

If the funds and  securities  are released from the escrow to us, the prospectus
shall be  supplemented  to indicate the amount of funds and securities  released
and the date of release.

     Investment Company Act of 1940

The Investment Act defines an "investment company" as an issuer that is or holds
itself out as being engaged primarily in the business of investing,  reinvesting
or trading of securities.  While we do not intend to engage in such  activities,
we may become  subject to regulation  under the  Investment  Act in the event we
obtain or continue to hold a minority interest in any number of enterprises.  We
may be  expected  to incur  significant  registration  and  compliance  costs if
required to register under the Investment  Act.  Accordingly,  Mr. Winstein will
continue to review our activities  from time to time with a view toward reducing
the likelihood that we may be classified as an "investment company."

We may participate in a business  opportunity by purchasing,  trading or selling
the securities of such business.  However,  we do not intend to engage primarily
in such  activities  and are not registered and do not propose to register as an
"investment company" under the Investment Act. We believe that such registration
is not  required.  Specifically,  we intend to conduct our  activities  so as to
avoid being classified as an "investment  company" under the Investment Act, and
therefore avoid application of the costly and restrictive registration and other
provisions of the Investment Act and the regulations promulgated thereunder.

We intend to implement our proposed business in a manner that will not result in
we being classified as an "investment company." Consequently,  our participation
in a  business  or  opportunity  through  the  purchase  and sale of  investment
securities will be limited.  In order to avoid  classification  as an investment
company,  we will use a significant portion of the net proceeds of this offering
to  search  for,  analyze,  merge,  acquire  or  participate  in a  business  or
opportunity by acquiring a majority interest therein, which does not involve the
acquisition of investment securities as defined in the Investment Act.

Implementation  of our proposed  business,  especially if it involves a business
reorganization  as discussed  above,  may be necessitate  changes in our capital
structure, management, control and business. Each of these areas is regulated by
the  Investment  Act, which  regulation has the purported  purpose of protecting
purchases of investment company  securities.  Since we do not intend to register
as an investment company,  the purchasers in this offering will not otherwise be
afforded these protections.

                                       24


                                   MANAGEMENT

The directors and executive officers currently serving Winmark are as follows:

Name                 Age          Positions Held              Expiration of Term
- ------------------ ------- -----------------------------     -------------------
Mark Winstein        47   President/Secretary/Treasurer/      December 21, 2004
607 E Street, S.E.                 Director
Washington, D.C.
20003

President,  Secretary,  Treasurer, and Director: Mark Winstein, 44 years of age,
is the sole  Officer  and  Director  of Winmark.  Mr.  Winstein  has served as a
Director, Secretary and Treasurer since the inception of the Company on December
22, 2003. His current term as a Director  expires,  subject to  re-election,  on
December 21, 2004. Mr.  Winstein is currently the founder/ CEO and a director of
Ecostructure Corporation,  a Washington D.C. corporation formed in 2001, engaged
in the  business  of  environmental  consulting.  From 1990  through  2000,  Mr.
Winstein seved as the co-founder and director of Save America's  Forests located
in Washington,  D.C. In 1982, Mr.  Winstein earned a B.A degree in Asian Studies
from Washington University in St. Louis,  Missouri.  Mr. Winstein has not served
and does not now serve as a director for any other public  corporation,  and has
never been an officer, director or shareholder in any other blank check company.

                                    Employees

Mr.  Winstein is our sole  director  and officer and is our only  employee.  Mr.
Winstein  intends  to devote  approximately  20 hours per month to our  business
following the closing of this offering.  Mr.  Winstein  receives no compensation
for his  services  during  the  period of time  required  to close on a business
opportunity.  We may engage, from time to time, business advisory services which
will be rendered on an  independent  contractor  basis  following the closing of
this offering. We may also engage, from time to time, professionals at customary
rates to assist us in our operations, if required.

                                   Facilities

Our principal  executive offices currently occupy  approximately 500 square feet
of space located at 607 E Street,  SE,  Washington,  D.C. 20003, on a lease-free
basis provided by Mr. Winstein. We incur no costs in the use of our offices. Our
telephone number is (202) 544-6562.

                                  Remuneration

We have not paid any  remuneration  to Mr.  Winstein  since our  inception.  Mr.
Winstein has not entered into an  employment  agreement  with us and he does not
intend to do so in the  foreseeable  future.  However,  should we  consummate  a
business combination, such as a merger or acquisition,  following the closing of
this offering,  Mr. Winstein may negotiate an annual remuneration package not to
exceed $250,000 with the combined  company,  provided that the candidate company
will be able to afford such  remuneration  package and which must be approved by
the candidate company. We may consummate a business  opportunity even though the
candidate company is not willing or able to afford such a remuneration  package.
Nevertheless,  certain inherent  conflicts of interest exist where management is
seeking annual  remuneration from a business  candidate while, at the same time,
negotiating  the terms  and  conditions  of the  merger  or  acquisition  of the
business.  The best  interests  of our  stockholders  will be  paramount  in any
decision to merge with or acquire a company, not the remuneration package of Mr.
Winstein.  None  of the  proceeds  of  this  offering  will  be  used to pay Mr.
Winstein's annual  remuneration  package.  We have not obtained any key-man life
insurance on Mr. Winstein and do not intend to do so in the foreseeable future.


                                       25


                             PRINCIPAL STOCKHOLDERS

The following  table sets forth certain  information  regarding our common stock
owned on the date of this  prospectus  and, as adjusted,  to reflect the sale of
shares offered by this prospectus, by (i) each person who is known by Winmark to
own  beneficially  more than five percent of our common stock;  (ii) each of our
officers and directors; and (iii) all officers and directors as a group:



- ---------------------------- --------------------------- ------------------ --------------------- -------------------
Name and Address                       Title             Number of Shares   % of Shares Before    % of Shares After
                                                                            Offering              Offering
- ---------------------------- --------------------------- ------------------ -------------------- -------------------
                                                                                          
Mark Winstein                  Director, President,        5,000,000            100%                  90.91%
607 E Street, S.E.             Secretary, Treasurer
Washington, D.C. 20003
- ---------------------------- --------------------------- ------------------ --------------------- -------------------
All Officers and Directors                                 5,000,000            100%                  90.91%
as a Group
- ---------------------------- --------------------------- ------------------ --------------------- -------------------
</table>

                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

Winmark was incorporated in Nevada in December, 2003. We have authorized capital
of  25,000,000  shares of common stock,  $.001 par value.  Winmark has 5,000,000
shares of common stock issued and outstanding prior to this offering.

In December,  2003, we issued 5,000,000 shares of common stock to Mark Winstein,
our sole officer and  directror,  in a private  placement  transaction  for cash
consideration  of $22,000.  The price of the common  stock to Mr.  Winstein  was
$0.0044 per share.

Mr. Winstein may be deemed to be a promoter of Winmark.

                            DESCRIPTION OF SECURITIES

                              General description.

The  securities  being  offered are  500,000,  shares of our common  stock.  Our
Articles of Incorporation  authorize the issuance of 25,000,000 shares of common
stock,  with a par value of $.001.  The  holders of the  shares:  (a) have equal
ratable rights to dividends from funds legally  available  therefore,  when, as,
and if declared by our board of directors;  (b) are entitled to share ratably in
all of the assets of Winmark  available for distribution  upon winding up of the
affairs of Winmark (c) do not have preemptive  subscription or conversion rights
and there are no  redemption  or sinking fund  applicable  thereto;  and (d) are
entitled  to one non-  cumulative  vote per  share on all  matters  on which our
shareholders may vote at all meetings of  shareholders.  These securities do not
have any of the following rights:  (a) cumulative or special voting rights;  (b)
preemptive  rights to purchase  in new issues of shares;  (c)  preference  as to
dividends or interest; (d) preference upon liquidation; or (e) any other special
rights or preferences.

In addition,  the shares are not convertible into any other security.  There are
no  restrictions  on dividends  under any loan other  financing  arrangements or
otherwise. See a copy of our Articles of Incorporation, Certificate of Amendment
and  Bylaws,  attached  hereto as Exhibit  3.1,  Exhibit  3.2 and  Exhibit  3.3,
respectively. We currently have 5,000,000 shares of common stock outstanding.


                                       26


DESCRIPTION OF SECURITIES - continued

                              Non-Cumulative Voting

The holders of shares of our common stock do not have cumulative  voting rights,
which means that the holders of more than 50% of such outstanding shares, voting
for the election of director,  can elect all of the directors to be elected,  if
they so choose.  In such event,  the holders of the remaining shares will not be
able to elect any of our  directors.  Prior to and upon the  completion  of this
offering,  Mr.  Winstein shall hold more than 50% of our  outstanding  shares of
common stock.

Upon  the   completion  of  this  offering   (assuming  the  offering  is  fully
subscribed),  we shall  have  5,500,000  shares of our common  stock  issued and
outstanding.

                                No Public Market

Our shares  have  never been  available  for  trading on a public  market and no
public market currently exists for our shares.


                         Shares Eligible for Future Sale

In January 2000,  the  Commission  issued an  interpretative  letter to the NASD
which  concluded that promoters or affiliates of a blank check company and their
transferees would act as "underwriters"  under the Securities Act when reselling
the  securities of a blank check  company.  Such letter also  indicated that the
Commission  believed  that  those  securities  can  be  resold  only  through  a
registered  offering.   Rule  144  would  not  be  available  for  those  resale
transactions despite technical compliance with the requirements of such Rule.

The Commission also believes that  shareholders who obtain  securities  directly
from a blank check issuer, rather than through promoters and affiliates, may not
use Rule 144 to resell their securities,  since their resale  transactions would
appear to be designed to  distribute  or  redistribute  securities to the public
without compliance with the registration requirements of the Securities Act.

If the outstanding  shares were registered for resale, the Commission would take
the view that Rule 419 of  Regulation C would apply to those  resales.  Further,
the resale  offering  would be  considered  an offering  "by or on behalf of the
registrant"  for purposes of Rule  415(a)(4),  which  applies to "at the market"
offerings, such that:

o    the offering includes securities registered (or qualified to be registered)
     on Form S-3 or Form F-3 which are to be offered and sold on a continuous or
     delayed  basis by or on  behalf  of the  registrant,  a  subsidiary  of the
     registrant or a person of which the registrant is a subsidiary;

o    the amount of  securities  registered  for such purposes must not exceed 10
     percent of the aggregate value of our voting stock held by non-affiliates;

o    the securities  must be sold through an  underwriter  acting on our behalf;
     and

o    the underwriter must be named in the prospectus.

                                       27


DESCRIPTION OF SECURITIES - continued

If all of the above  requirements  are not met, the offering  must be priced and
the securities  sold only at the price as set forth in the prospectus and not at
market prices.

                                 Transfer Agent

Our transfer agent is First American Transfer Company, 706 East Bell Road, #201,
Phoenix, Arizona 85022: (602) 485-1346 Fax (602) 788-0423.


                          Report to Securities Holders

We will furnish to holders of our securities annual reports  containing  audited
financial  statements.  We may issue  other  unaudited  interim  reports  to our
securities  holders  as  we  deem  appropriate.   Contemporaneously,  with  this
offering,  we intend to register our securities  with the  Commission  under the
provisions of Section 12(g) of the Exchange Act, as amended,  and, in accordance
therewith,  we  will  be  required  to  comply  with  certain  reporting,  proxy
solicitation and other requirements of the Exchange Act.


                              PLAN OF DISTRIBUTION

Winmark  intends to offer,  sell and distribute  publicly  500,000 shares of our
common  stock at an  offering  price of $0.10 per  share,  for a total  offering
amount  of  $50,000.  This  offering  is  being  offered  on  a  "best  efforts,
"all-or-none"  basis during the offering period.  If 500,000 shares are not sold
and paid for by midnight  Mountain Standard Time on the last day of the offering
period all proceeds will be refunded  promptly to subscribers  in full,  without
interest and deduction for commissions or expenses. If the last day of the sales
period, or extended sales period, falls on a Saturday,  Sunday or legal holiday,
the next following business day shall be considered the last day of such period.
No  securities  will be issued to the  public  investors  until such time as the
funds are  deposited  in the escrow  account of Winmark  within the time  period
described  above.  All proceeds  will be deposited in an escrow  account that we
have  established  with  Manufacturers  and Traders  Trust  Company,  a New York
banking company, before we offer any shares in this offering to the public until
such  time  as the  closing  of this  offering  and the  closing  of a  business
opportunity, such as a merger or acquisition.


We  intend to offer the  securities  directly  to the  public  through  our sole
officer and director,  Mark Winstein, in those jurisdictions where sales by such
persons are permitted by law and, otherwise, pursuant to Rule 3a4-1(a)(2) of the
Exchange  Act.  Accordingly,  we believe  that such persons will qualify for the
safe harbor from  broker-dealer  registration set out in Rule 3a4-1(a)(2) of the
Exchange Act. No  commission  will be paid to any officer or director on account
of any such  sales.  No  broker-dealers  will be  engaged  to  assist us in this
offering.

Mr. Winstein will not purchase any of the securities of this offering.

We have no plans, proposals, arrangements, understandings or agreements with any
market maker  regarding  participation  in the  aftermarket  for our securities.
There are no plans, proposals,  arrangements,  understandings or agreements with
respect to the sale of additional  securities to affiliates or others  following
the  registered  distribution  but  prior to the  identification  of a  business
opportunity.

                                       28


PLAN OF DISTRIBUTION - continued

                             Pricing of the Offering

Prior to this  offering,  there has been no public  market  for our  securities.
Consequently,  the initial public  offering  prices for the securities have been
determined by Mr.  Winstein.  Among the factors  considered in  determining  the
public offering price were the history of, and the prospects for:

     o    our proposed business;

     o    an assessment of our management;

     o    our proposed operations;

     o    our development; and

     o    the general condition of the securities market.


The initial public offering price does not necessarily  bear any relationship to
our assets, book value, lack of earnings or other established criteria of value.
Such  prices are  subject to change as a result of market  conditions  and other
factors,  and no assurance can be given that a public market for the  securities
will develop after the closing, or if a public market develops, that such public
market will be sustained,  or that the  securities  can be resold at any time at
the offering or any other price.

Inasmuch as we are  offering  the  securities  and an  underwriter  has not been
retained for such purpose, Mr. Winstein'  establishment of the offering price of
the shares has not been  determined by  negotiation  with an  underwriter  as is
customary in an initial public  offering.  Thus,  subscribers  are subject to an
increased risk that the price our shares have been arbitrarily determined.

The Commission has adopted  regulations  that generally define penny stock to be
any equity  security that has a market price less than $5.00 per share,  subject
to certain  exceptions.  Upon authorization of the securities offered hereby for
quotation,  such  securities will not initially be exempt from the definition of
penny stock.  If the  securities  offered hereby fall within the definition of a
penny stock  following the effective  date, our securities may become subject to
rules that impose additional sales practice  requirements on broker-dealers  who
sell such securities to persons other than established  customers and accredited
investors  (generally those with assets in excess of $1,000,000 or annual income
exceeding  $200,000,  or $300,000 together with their spouse).  For transactions
covered  by these  rules,  the  broker-dealer  must make a  special  suitability
determination  for the  purchase  of  such  securities  and  have  received  the
purchaser's   written  consent  to  the  transaction   prior  to  the  purchase.
Additionally,  for any transaction  involving a penny stock,  unless exempt, the
rules  require the  delivery,  prior to the  transaction,  of a risk  disclosure
document  mandated by the  Commission  relating to the penny stock  market.  The
broker-dealer  also must disclose the commissions  payable to the broker-dealer,
current  quotations for the  securities  and, if the  broker-dealer  is the sole
market-maker,  the broker-dealer must disclose this fact and the broker-dealer's
presumed  control  over the market.  Finally,  monthly  statements  must be sent
disclosing  recent price information for the penny stock held in the account and
information on the limited market in penny stocks. Consequently, the penny stock
rules may restrict the ability of  broker-dealers to sell our securities and may
affect the ability of purchasers in this offering to sell our  securities in the
secondary market.


                                       29


PLAN OF DISTRIBUTION - continued

                        EXEMPTION FROM STATE REGISTRATION

Winmark intends to offer and sell this offering to accredited investors pursuant
to  exemptions  from  registration  in a  limited  number  of  states.  As such,
purchasers of the  securities in this offering,  and in any  subsequent  trading
market,  must be residents of such exempt states.  However,  Winmark  intends to
register  this  offering  in the State of  Nevada.  As such,  purchasers  of the
securities in this  offering,  and in any  subsequent  trading  market,  must be
residents of such jurisdiction,  absent an exemption from registration.  Winmark
will file a post-effective  amendment to the registration statement, and related
prospectus,  for the purpose of disclosing  additional  states, if any, in which
its securities will be eligible for sale.

                               LEGAL PROCEEDINGS

The Company is not a party to any pending legal  proceedings and, to the best of
Mr.  Winstein's  knowledge,  no such  action by or against  the Company has been
threatened.
                                 LEGAL MATTERS

We have retained William D. O'Neal,  Esq., as legal counsel for the Company. The
address  is: The  O'Neal  Law Firm,  P.C.,  668 North  44th  Street,  Suite 233,
Phoenix,  Arizona  85008.  Mr.  O'Neal has no  involvement  with the  day-to-day
activities of Winmark.
                                     EXPERTS

No named expert or counsel was hired on a contingent  basis.  No named expert or
counsel will receive a direct or indirect interest in the small business issuer.
No  named  expert  or  counsel  was a  promoter,  underwriter,  voting  trustee,
director,  officer,  or employee of the small  business  issuer.  The  financial
statements  of Winmark as of December  31,  2003,  included in the  registration
statement  and this  prospectus  have been  included  herein in  reliance on the
report  of  Shelley   International,   C.P.A,   independent   certified   public
accountants,  given on the authority of such firm as experts in  accounting  and
auditing.

                       WHERE YOU CAN FIND MORE INFORMATION

We have filed with the  Commission a  registration  statement on Form SB-2 under
the Securities Act with respect to the  securities  offered in this  prospectus.
This  prospectus  does  not  contain  all of the  information  contained  in the
registration  statement  and the  exhibits  and  schedules  to the  registration
statement.  Some items are omitted in accordance  with the rules and regulations
of the  Commission.  For further  information  about Winmark and the  securities
offered under this prospectus,  you should review the registration statement and
the  exhibits  and  schedules  filed  as a part of the  registration  statement.
Descriptions of contracts or other documents  referred to in this prospectus are
not necessarily  complete. If the contract or document is filed as an exhibit to
the  registration  statement,  you should review that contract or document.  You
should  be aware  that when we  discuss  these  contracts  or  documents  in the
prospectus we are assuming  that you will read the exhibits to the  registration
statement for a more  complete  understanding  of the contract or document.  The
registration  statement and its exhibits and schedules may be inspected  without
charge at the public reference  facilities  maintained by the Commission in Room
1024, 450 Fifth Street,  N.W.,  Washington,  D.C. 20549.  Copies may be obtained
from the  Commission  after payment of fees  prescribed by the  Commission.  The
Commission  also  maintains  a  Web  site  that  contains  reports,   proxy  and
information  statements and other information regarding  registrants,  including

                                      30


WHERE YOU CAN FIND MORE INFORMATION - continued

United States, that file electronically with the Commission. The address of this
Web site is  www.sec.gov.  You may also contact the  Commission  by telephone at
(800) 732-0330.


                                      31




                          INDEX TO FINANCIAL STATEMENTS





                                                                 Page

Report of Independent Certified Public Accountants .............. F-1

Financial Statements

  Balance Sheet ................................................. F-2

  Statement of Operations ....................................... F-3

  Statement of Stockholders' Equity ............................. F-4

  Statement of Cash Flows ....................................... F-5

  Notes to Financial Statements ................................. F-6 - F-8


                                       32



                REPORT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANT
                -------------------------------------------------

To the Board of Directors/Audit Committee
Ecostructure Corporation

     I have audited the accompanying  balance sheet of Ecostructure  Corporation
(a development  stage company and a Nevada  corporation) as of December 31, 2003
and the related statements of operations,  stockholders'  equity, and cash flows
for the period from December 22, 2003  (inception)  to December 31, 2003.  These
financial  statements are the  responsibility  of the Company's  management.  My
responsibility  is to express an opinion on these financial  statements based on
my audit.

     I  conducted  my audit in  accordance  with  auditing  standards  generally
accepted in the United States.  Those standards  require that I plan and perform
the audit to obtain reasonable  assurance about whether the financial statements
are free of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements.  An
audit also includes  assessing the accounting  principles  used and  significant
estimates  made by  management,  as well as  evaluating  the  overall  financial
statement presentation.  I believe that my audit provides a reasonable basis for
my opinion.

     In my opinion,  the financial  statements referred to above present fairly,
in all material respects, the financial position of Ecostructure  Corporation as
of December 31, 2003 and the related  statements  of  operations,  stockholders'
equity,  and cash flows for the period from  December  22, 2003  (inception)  to
December 31, 2003 in conformity with United States generally accepted accounting
principles.

     The accompanying  financial statements have been prepared assuming that the
Company  will  continue  as a  going  concern.  The  Company  is new  and has no
operations or revenues.  The lack of operations  raises  substantial doubt about
the  Company's  ability  to  continue  as a going  concern.  See Note 3 for more
details.  These financial  statements do not include any adjustments relating to
the  recoverability  and  classification of asset carrying amounts or the amount
and classification of liabilities that might result should the Company be unable
to continue as a going concern.


Shelley International CPA

January  26, 2004
Mesa, Arizona

                                       F-1


                                       33




                            ECOSTRUCTURE CORPORATION
                                  Balance Sheet
                          (a development stage company)
                             as of December 31, 2003

                                                                12/31/03

                                     ASSETS
                                   ----------

Cash                                                                   0

Total Current Assets                                                   0

Other Assets                                                           0

Total Assets                                                           0
                                                              ----------


                      LIABILITIES AND STOCKHOLDERS' EQUITY
                    ----------------------------------------

Liabilities
Accounts Payable                                                       0

Total Current Liabilities                                              0
                                                              ----------
Stockholders' Equity
Common Stock, authorized
25,000,000 shares,  issued and
outstanding 5,000,000 shares,
par value $0.001                                                   5,000

Additional Paid in Capital                                        17,000

Deficit accumulated during development stage                     (22,000)
                                                              ----------
Total Stockholders' Equity                                             0
                                                              ----------
Total Liabilities and Stockholders' Equity                             0
                                                              ----------

The accompanying notes are an integral part of these statements

                                       F-2

                                       34



                            ECOSTRUCTURE CORPORATION
                             Statement of Operations
                          (a development stage company)

     For the period from December 22, 2003 (inception) to December 31, 2003


Revenue                                               0
                                            -----------

Expenses
Legal and Accounting                             22,000

Total Expenses                                  (22,000)

Income before Taxes                             (22,000)

Provision for Income Taxes                            0

Net Income (Loss)                               (22,000)
                                            -----------

Primary and Diluted Earnings per Share                a

Weighted Average Number of Shares             5,000,000
                                            -----------

a = less than $0.01


The accompanying notes are an integral part of these statements


                                       F-3

                                       35


                            ECOSTRUCTURE CORPORATION
                        Statement of Stockholders' Equity
                          (a development stage company)
                   From December 22, 2003 to December 31, 2003


                                    Common  Stock        Paid in   Accumulated     Total
                                 Shares       Amount      Capital    Deficit       Equity
                                                                       

Balance, December 22, 2003            0            0             0           0          0

Initial capitalization
Sale of common stock          5,000,000        5,000        17,000                 22,000

Retained Deficit                                                      (22,000)    (22,000)
                             ----------    ----------   ----------  ----------  ----------
Balance, December 31, 2003    5,000,000        5,000        17,000    (22,000)         0
                             ----------    ----------   ----------  ----------  ----------

</table>
The accompanying notes are an integral part of these statements

                                       F-4

                                       36


                            ECOSTRUCTURE CORPORATION
                             Statement of Cash Flows
                          (a development stage company)
           for the period from December 22, 2003 to December 31, 2003



Cash from Operations

Net Loss                                                (22,000)

Changes in Receivable or Payables                             0

Cash (Used)Provided by Operations                       (22,000)

Cash Used for Investing                                       0

Cash Provided by Financing                                    0

Sale of Common Stock                                     22,000

Cash Provided by Financing                               22,000

Net Change in Cash                                            0

Beginning Cash                                                0
                                                     ----------
Ending Cash                                                   0
                                                     ----------
Supplemental Cash Flow Information
Taxes Paid
Year 2003 $0

Interest Paid
Year 2003 $0

The accompanying notes are an integral part of these statements

                                       F-5

                                       37


                            ECOSTRUCTURE CORPORATION
                          NOTES TO FINANCIAL STATEMENTS

NOTE 1.  GENERAL ORGANIZATION AND BUSINESS

Ecostructure  Corporation (the Company) was  incorporated  under the laws of the
state of Nevada on December 22, 2003. The Company has one sole officer, director
and  shareholder.  The Company is a blank check company subject to Rule 419. The
Company was organized to acquire or merge with another business or company.  The
officer is currently  looking for potential merger  candidates but currently has
none.

The  Company  has  been in the  development  stage  since  inception  and has no
operations to date. Other than issuing shares to the sole shareholder there have
been no operations.

NOTE  2. SUMMARY OF SIGNIFICANT ACCOUNTING PRACTICES

The  Company  has no  assets  or debt as of  December  31,  2003.  The  relevant
accounting policies and procedures are listed below.

Accounting Basis
The basis is generally accepted accounting principles.

Earnings per Share

The basic earnings  (loss) per share is calculated by dividing the Company's net
income available to common shareholders by the weighted average number of common
shares during the year. The diluted  earnings  (loss) per share is calculated by
dividing the Company's net income (loss) available to common shareholders by the
diluted  weighted  average  number of shares  outstanding  during the year.  The
diluted  weighted  average  number of shares  outstanding  is the basic weighted
number  of  shares  adjusted  as of the  first of the  year for any  potentially
dilutive debt or equity.

The Company has not issued any options or warrants or similar  securities  since
inception.

Dividends

The Company has not yet adopted any policy  regarding  payment of dividends.  No
dividends have been paid during the periods shown.

Income Taxes

The provision for income taxes is the total of the current taxes payable and the
net of the  change  in the  deferred  income  taxes.  Provision  is made for the
deferred  income  taxes  where  differences  exist  between  the period in which
transactions  affect  current  taxable income and the period in which they enter
into the determination of net income in the financial statements.

                                       F-6

                                       38


Stock Based Compensation

The Company  accounts for its stock based  compensation  based on  provisions in
SFAS No. 123,  Accounting for Stock-Based  Compensation  which utilizes the fair
method for the valuation of its securities given as compensation.

Advertising

Advertising is expensed when incurred. There has been no advertising during the
periods.

Use of Estimates

The preparation of financial statements in conformity with accounting principles
generally  accepted in the United States of America requires  management to make
estimates  and  assumptions  that  affect  the  reported  amounts  of assets and
liabilities  and disclosure of contingent  assets and liabilities at the date of
the financial statements and the reported amounts of revenue and expenses during
the reporting period. Actual results could differ from those estimates.

NOTE 3.  GOING CONCERN

The  accompanying  financial  statements  have been  prepared  assuming that the
Company will continue as a going concern,  which contemplates the realization of
assets and the  liquidation  of  liabilities  in the normal  course of business.
However the Company has no current source of revenue,  nor  operations.  Without
realization  of  additional  capital,  it would be  unlikely  for the Company to
continue as a going concern.  It is management's  plan to seek a suitable merger
candidate which would supply the needed cash flow.

NOTE 4.  STOCKHOLDERS' EQUITY

Common Stock

On December 22, 2003  (inception),  the Company issued  5,000,000  shares of its
$0.001 par value common stock to it sole shareholder for $22,000.  This has been
the structure from that time until the present.

NOTE 5   RELATED PARTY TRANSACTIONS

The Company neither owns nor leases any real or personal  property.  Most office
services are provided  without  charge by the president who lives in Washington,
D.C. Such costs are immaterial to the financial statements and accordingly, have
not been reflected therein.  Some expenses, as explained above, were reimbursed.
The  officer(s)  and  director(s)  of the Company are involved in other business
activities  and  may,  in  the  future,   become   involved  in  other  business
opportunities  becomes available,  such persons may face a conflict in selecting
between  the Company and their  other  business  interests.  The Company has not
formulated a policy for the resolution of such conflicts.

                                       F-7

                                       39


NOTE 6   PROVISION FOR INCOME TAXES

The Company  provides for income taxes under  Statement of Financial  Accounting
Standards NO. 109, Accounting for Income Taxes. SFAS No. 109 requires the use of
an asset and  liability  approach in accounting  for income taxes.  Deferred tax
assets  and  liabilities  are  recorded  based on the  differences  between  the
financial statement and tax bases of assets and liabilities and the tax rates in
effect when these differences are expected to reverse.

SFAS No. 109  requires  the  reduction  of  deferred  tax assets by a  valuation
allowance if, based on the weight of available evidence,  it is more likely than
not that some or all of the  deferred  tax assets will not be  realized.  In the
Company's opinion, it is uncertain whether they will generate sufficient taxable
income in the future to fully utilize the net deferred tax asset. Accordingly, a
valuation allowance equal to the deferred tax asset has been recorded. The total
deferred tax asset is $4,840, which is calculated by multiplying a 22% estimated
tax rate by the items making up the deferred tax account,  organization costs of
$22,000,. The total valuation allowance is a comparable $4,840.

The provision for income taxes is comprised of the net changes in deferred taxes
less the valuation  account plus the current taxes payable as shown in the chart
below.

                  Net changes in  Deferred Tax Benefit less than
                   valuation account                                          0

                  Current Taxes Payable                                       0
                                                                     -----------
                  Net Provision for Income Taxes                              0
                                                                     -----------


NOTE 7   REVENUE AND EXPENSES

The Company currently has no operations and no revenue.

NOTE 8   OPERATING LEASES AND OTHER COMMITMENTS:

As explained in the note  pertaining  to related  parties,  the Company uses the
offices of its president with no charge. The Company also has no assets or lease
obligations of any kind. The five year projection of these future obligations of
any kind. The five year projection of these future obligations are as followings
will be zero in each year.

                           Year 1  Year 2  Year 3  Year 4  Year 5
Operating Leases, etc        0       0       0       0       0


NOTE 9   SUBSEQUENT EVENTS

The Company is currently filing papers to conduct a blank check offering subject
to Rule 419 of Regulation C. This offering is still in the  preparation  process
and has not been filed nor approved as of the report date.  This offering  calls
for the sale of  500,000  shares of common  stock at a price of $0.10 per share.
When completed, the sale will net the Company $50,000.

                                       F-8

                                       40



                     INFORMATION NOT REQUIRED IN PROSPECTUS
                   Indemnification of Directors and Officers.

Winmark's Articles of Incorporation provide that we must indemnify our directors
and  officers  to the  fullest  extent  permitted  under  Nevada law against all
liabilities  incurred by reason of the fact that the person is or was a director
or  officer  or a  fiduciary  of  Winmark.  The  effect of these  provisions  is
potentially  to indemnify  Winmark's  directors  and officers from all costs and
expenses of liability  incurred by them in connection  with any action,  suit or
proceeding  in which  they are  involved  by  reason of their  affiliation  with
Winmark.  Pursuant  to Nevada  law, a  corporation  may  indemnify  a  director,
provided that such indemnity shall not apply on account of:


     (a)  acts or omissions of the director  finally  adjudged to be intentional
          misconduct or a knowing violation of law;

     (b)  unlawful distributions; or

     (c)  any  transaction  with respect to which it was finally  adjudged  that
          such director  personally  received a benefit in money,  property,  or
          services to which the director was not legally entitled.


Such indemnification provisions are intended to increase the protection provided
directors  and,  thus,  increase  our  ability to attract  and retain  qualified
persons to serve as directors.  Because  directors  liability  insurance is only
available at considerable  cost and with low dollar limits of coverage and broad
policy exclusions, we do not currently maintain a liability insurance policy for
the benefit of our directors  although we may attempt to acquire such  insurance
in the  future.  We  believe  that the  substantial  increase  in the  number of
lawsuits being threatened or filed against  corporations and their directors and
the  general   unavailability  of  directors   liability  insurance  to  provide
protection against the increased risk of personal liability  resulting from such
lawsuits have combined to result in a growing  reluctance on the part of capable
persons to serve as members of boards of directors of public companies.  We also
believe that the increased risk of personal liability without adequate insurance
or other indemnity protection for our directors could result in overcautious and
less effective  direction and  management of our company.  Although no directors
have resigned or have threatened to resign as a result of our failure to provide
insurance or other indemnity protection from liability,  it is uncertain whether
our  director(s)  would  continue  to  serve  in  such  capacities  if  improved
protection from liability were not provided.

The  provisions  affecting  personal  liability  do not  abrogate  a  director's
fiduciary duty us and our  shareholders,  but eliminate  personal  liability for
monetary  damages  for  breach of that duty.  The  provisions  do not,  however,
eliminate or limit the liability of a director for failing to act in good faith,
for  engaging in  intentional  misconduct  or  knowingly  violating  a law,  for
authorizing  the  illegal  payment of a dividend  or  repurchase  of stock,  for
obtaining an improper  personal  benefit,  for  breaching a  director's  duty of
loyalty  (which  is  generally  described  as  the  duty  not to  engage  in any
transaction  which involves a conflict between the interest of Winmark and those
of the  director)  or  for  violations  of  the  federal  securities  laws.  The
provisions  also limit or indemnify  against  liability  resulting  from grossly
negligent  decisions  including grossly negligent business decisions relating to
attempts to change control of our company.

                                       41


The  provisions  regarding  indemnification  provide,  in essence,  that we will
indemnify our directors against expenses (including attorneys' fees), judgments,
fines and  amounts  paid in  settlement  actually  and  reasonably  incurred  in
connection  with any action,  suit or proceeding  arising out of the  director's
status as a director of Winmark,  including  actions  brought by or on behalf of
Winmark  (shareholder  derivative  actions).  The  provisions  do not  require a
showing  of good  faith.  Moreover,  they  do not  provide  indemnification  for
liability  arising  out  of  willful  misconduct,   fraud,  or  dishonesty,  for
"short-swing"  profits  violations under the federal securities laws, or for the
receipt  of  illegal   remuneration.   The   provisions   also  do  not  provide
indemnification  for any  liability  to the extent such  liability is covered by
insurance.  One purpose of the provisions is to supplement the coverage provided
by such insurance. However, as mentioned above, we do not currently provide such
insurance to our directors,  and there is no guarantee that we will provide such
insurance to our directors in the near future  although we may attempt to obtain
such insurance.

The provisions  diminish the potential rights of action which might otherwise be
available to shareholders by limiting the liability of officers and directors to
the maximum extent  allowable under Nevada law and by affording  indemnification
against  most  damages and  settlement  amounts paid by a director of Winmark in
connection with any shareholders  derivative action.  However, the provisions do
not have the effect of limiting the right of a shareholder  to enjoin a director
from taking  actions in breach of his  fiduciary  duty,  or to cause  Winmark to
rescind  actions  already  taken,  although as a practical  matter courts may be
unwilling  to grant  such  equitable  remedies  in  circumstances  in which such
actions  have  already  been  taken.  Also,  because  we do not  presently  have
directors  liability  insurance and because  there is no assurance  that we will
procure  such  insurance  or that if such  insurance is procured it will provide
coverage to the extent directors would be indemnified  under the provisions,  we
may be forced to bear a portion or all of the cost of the director's  claims for
indemnification  under such  provisions.  If we are forced to bear the costs for
indemnification,  the  value of our  stock  may be  adversely  affected.  In the
opinion of the Commission,  indemnification  for  liabilities  arising under the
Securities Act is contrary to public policy and, therefore, is unenforceable.


                  Other Expenses of Issuance and Distribution.

The  following is an  itemization  of expenses,  incurred and paid by Winmark in
connection with the issuance and  distribution  of the securities  being offered
hereby.


Commission Registration and Filing Fee        $      4.60
Transfer Agent Fees                                250.00
Financial Printing                                 200.00
Accounting Fees                                  1,500.00
Legal Fees                                      20,000.00
Escrow Fees                                      4,000.00
Miscellaneous                                           0
                                           --------------
  TOTAL                                       $ 25,954.60
                                           --------------

                                       42



                    Recent Sales of Unregistered Securities.

On December 22, 2003, we issued 5,000,000 shares of our common stock to our sole
officer and  director,  Mark  Winstein for $22,000 in cash, at a price of 0.0044
per share. There have been no other sales of our unregistered securities.

All unregistered  securities issued by Winmark prior to this offering are deemed
"restricted  securities"  within the meaning of that term as defined in Rule 144
of the  Securities  Act and  have  been  issued  pursuant  to  certain  "private
placement"  exemptions  under Sections 4(2) of the Securities Act and Regulation
D, as promulgated by the Commission,  such that the sales of the securities were
to sophisticated or accredited investors, as that latter term is defined in Rule
215 and Rule 501 of Regulation D of the Securities Act, and were transactions by
an issuer not involving any public  offering.  Such  sophisticated or accredited
investors  had access to  information  on Winmark  necessary to make an informed
investment decision.

All of the aforesaid securities have been appropriately marked with a restricted
legend and are "restricted  securities," as defined in Rule 144 of the rules and
regulations of the Commission, unless otherwise registered. All of the aforesaid
securities  were  issued  for  investment  purposes  only and not with a view to
redistribution,  absent  registration.  All of the  aforesaid  persons have been
fully informed and advised concerning Winmark, its business, financial and other
matters.  Transactions  by Winmark  involving the sales of these  securities set
forth above were issued pursuant to the "private placement" exemptions under the
Securities  Act, as amended,  as  transactions  by an issuer not  involving  any
public offering.  Winmark has ben informed that each person is able to bear the
economic  risk of his  investment  and is  aware  that the  securities  were not
registered  under the Securities  Act, and cannot be re-offered or re-sold until
they  have  been  so  registered  or  until  the  availability  of an  exemption
therefrom.  The transfer  agent and  registrar of Winmark will be  instructed to
mark "stop transfer" on its ledgers to assure that these  securities will not be
transferred,  absent  registration,  or until the  availability  of an exemption
therefrom is determined.


                                    Exhibits

The following is a list of Exhibits filed herewith by the registrant as part of
the SB-2 Registration Statement and related Prospectus:

   3.1  Articles of Incorporation.
   3.2  Certificate of Amendment
   3.3  By-laws.
   3.4  Written Consent of Sole Director
   4.1  Form of Common Stock Certificate.
   5.1  Opinion and Consent of The O'Neal Law Firm, P.C.
  10.1  Escrow Agreement.
  10.2  Subscription Agreement.
  23.1  Consent of Shelley International, C.P.A.

                                       43


                                  Undertakings

        The undersigned registrant undertakes to:

          (1) To file,  during  any  period  in which  offers or sales are being
          made, a post-effective amendment to this registration statement:

              (i)   To include any  prospectus  required by section  10(a)(3) of
                    the Securities Act;

              (ii)  To reflect  in the  prospectus  any facts or events  arising
                    after the effective date of the  registration  statement (or
                    the most recent  post-effective  amendment  thereof)  which,
                    individually  or in the  aggregate,  represent a fundamental
                    change  in the  information  set  forth in the  registration
                    statement:

              (iii) To include any material information with respect to the plan
                    of distribution not previously disclosed in the registration
                    statement or any material change to such  information in the
                    registration statement;

               Provided,  however,  that paragraphs  (a)(1)(i) and (a)(1)(ii) do
               not apply if the  registration  statement  is on Form S-3 or Form
               S-8,   and  the   information   required  to  be  included  in  a
               post-effective  amendment  by those  paragraphs  is  contained in
               periodic  reports filed by the registrant  pursuant to section 13
               or section  15(d) of the  Exchange Act that are  incorporated  by
               reference in the registration statement.

          (2) That,  for the  purpose of  determining  any  liability  under the
          Securities Act, each such post-effective  amendment shall be deemed to
          be a new  registration  statement  relating to the securities  offered
          therein,  and the  offering of such  securities  at that time shall be
          deemed to be the initial bona fide offering thereof.

          (3) To remove from registration by means of a post-effective amendment
          any of the  securities  being  registered  which remain  unsold at the
          termination of the offering.


Insofar as indemnification  for liabilities arising under the Securities Act may
be permitted to directors,  officers and  controlling  persons of the registrant
pursuant to the foregoing  provisions,  or otherwise,  the  registrant  has been
advised that in the opinion of the Commission  such  indemnification  is against
public policy as expressed in the Act and is, therefore,  unenforceable.  In the
event that a claim for indemnification  against such liabilities (other than the
payment by the registrant of expenses incurred or paid by a director, officer or
controlling  person of the registrant in the  successful  defense of any action,
suit or proceeding) is asserted by such director,  officer or controlling person
in connection with the securities being registered,  the registrant will, unless
in the  opinion  of its  counsel  the matter  has been  settled  by  controlling
precedent,  submit to a court of appropriate  jurisdiction  the question whether
such  indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issue.


                                       44


                                   SIGNATURES


In  accordance  with  the  requirements  of  the  Securities  Act of  1933,  the
registrant certifies that it has reasonable grounds to believe that it meets all
of the  requirements  of  filing  Form  SB-2 and  authorized  this  Registration
Statement  to be  signed  on its  behalf  by the  undersigned,  in the  City  of
Washington, D.C., District of Columbia.


WINMARK, INC.

By: /s/ Mark Winstein
- ------------------------------
Mark Winstein
President and Director
Dated: May 10, 2004



In  accordance  with  the  requirements  of the  Securities  Act of  1933,  this
Registration Statement was signed by the following person in the capacity and on
the date stated.


By: /s/ Mark Winstein
- -----------------------------
Mark Winstein
President and Director
Dated: May 10, 2004

                                       45