GBFans.com: "That's right. Direct from 1989 the Ghostbusters 2 Trading Cards from Topps! We found a large old stock of cards in the back of a warehouse and are giving you the chance to relive your childhood by collecting them all! Each pack of cards is brand new and unopened and contains 8 cards, 1 sticker and 1 stick of bubble gum.
There are 88 cards and 11 stickers, so collect them all!
Note: We do not recommend eating the bubble gum. If you eat it, it is at your own risk! It is also possible that oils from the gum have damaged one of the cards in the package."
Link: http://www.gbfans.com/shop/ghostbusters-2-trading-cards/