IMPERIAL TOYS STICK-ONS
In 1986, Imperial Toy Corp released a set of 6 Sticker Sets featuring the images of Series 1 and Series 2 Garbage Pail Kids. Each package featured 12 character-shaped stickers. All of the stickers in the package were 'puffy' as opposed to just flat stickers. Each sticker was cut around the character (as opposed to just a rectangle) giving them a very unique shape.
The back of each sticker pack was the same. It included manufacturing details as well as a section titled: "Fun Things To Do With Stickers". It gave suggestions as to who to 'Trade 'em' with or 'Give 'em' to, as well as ideas as to what you can 'Stick 'em on'.