Here is the 1997 San Diego Comic Con Bongo Booth (publisher of "Simpsons" comics) sticker set of three:
These stickers are firmly in the Topps Wacky tradition and predate the trading card versions of them that appeared a few years later in the 2001 Simpsons Mania card set from Inkworks, mentioned and shown above. (Well, two of the images anyway, as the third sticker was not used in the card set for whatever reason).
These were available only one sticker at a time and the set is therefore pretty hard to make.
Best of all, unlike the ones seen in the Simpsons Mania card set, these are actual STICKERS, just like the original Wacky Packs, and even have a cool "Ludlow" type backing!