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Under the Uniform Commercial Code (UCC) (Ill. Rev. Stat. 1981, ch. 26, par. 1 -- 101 et seq.) a modification of an existing contract 'within this Article needs no consideration to be binding.' (Ill. Rev. Stat. 1981, ch. 26, par. 2 -209(1).) 

The UCC defines 'goods' as (Ill. Rev. Stat. 1981, ch. 26, par. 2-105(1)): ''Goods' means all things, including specially manufactured goods, which are movable at the time of identification to the contract for sale other than the money in which the price is to be paid, investment securities (Article 8) and things in action. 'Goods' also includes the unborn young ...