* Scratch and Sniff Library - Personal website containing scanned images of stickers* '80s Scratch and Sniff Sticker Collection - Personal website containing scanned images of stickers printed in the 1980s* HowStuffWorks.com
==References==== External links ==*scratch and sniff stickers* Scratch and Sniff Library - Personal website containing scanned images of stickers* '80s Scratch and Sniff Sticker Collection - Personal website containing scanned images of stickers printed in the 1980s* HowStuffWorks.com