For $2 and a YooHoo proof of purchase, you could get a CD featuring performances by punk and ska artists and vote for your favorite song (the band with the most votes would itself get cash and possible studio time.)  The resulting CD, "Warped Speed", is now an obscure item, but a few online reviewers liked some of the tracks.  This is just the free rack postcard announcing the promotion, never mailed or messaged, and i excellent condition