The Prizes in Disguise contest was a promotion run by Hasbro during Generation One, starting in 1986.
Game pieces for the contest consisted of reflective iron-on patches. When the iron-on patch was used, it was possible to find instead an instant win ticket for prizes, including Transformers "action cards", a Transformers voice changer (of the Enemy variety), or a party with "life-size" Transformers! Among the "life-size" Transformers shown were Jazz and Skywarp.
Hurry, contest ends January 31, 1987!