If you were a child of the 80's, then there is a good chance that some of these will be familiar. Thinking back, I can't comprehend some of these! Topless Robot has compiled 20 of the most ridiculous G.I. Joe and Cobra file cards that were a part of the packaging back then, and still are I believe.
Source: Topless Robot's The 2 Most Ridiculous G.I. Joe File Cards