An illustration of a blonde woman with red red text above her and white text below her on a green background.
CREATIVE HOUSE 60641 MADE IN U.S.A.
A "booby prize" is a prize given as a joke to the last-place finisher in a race or competition, according to Oxford. The imagery of the attractive blond woman suggests that the joke here is not a last place prize, although blond women finishing last is its own known joke line, but a prize based on looks or appearance with a sexual connotation toward breasts or their slang, "boobs".
Creative House Productions Inc. originated in 1964 and was a design and manufacturing company based in Chicago, Illinois. It was responsible for the creation of many promotional comic pins found in gumball machines and Cracker Jack boxes. Creative House eventually created the brand PinMart, which became the first website to sell lapel pins. PinMart eventually outgrew its parent company and bought Creative House in 2008.
PinMart. (2020). About us. https://www.pinmart.com/about/