Prizes in Disguise
From MediaWiki

The Prizes in Disguise contest was a promotion run by Hasbro early in Generation 1, around 1985.
Game pieces for the contest consisted of iron-on patches. When the iron-on patch was used, it was possible to find instead an instant win ticket for a Transformers voice changer (of the Enemy variety)—or to have a party with "life-size" Transformers! Among the "life-size" Transformers shown were Jazz and Skywarp.
An entire toy commercial, complete with new animation featuring Jazz, Cosmos and Spike, was commissioned to advertise the contest.

