These stickers come random in Pokemon Pan - or flavored bread, and their proper name is Deco Chara Seals. They're so popular that special albums have even been made to put them in.
Every Pokemon under the sun, from gens 1-5, is featured on a sticker, some in pairs or groups . Even human characters are featured on stickers.
The best thing about these stickers is that they come in such dynamic poses, and they're reusable! It was for this reason that I decided to start a pan collection of generations 1 and 2. Also, I was starting to get discouraged with my TOMY collection, as most of the ones I need are rare, and pricey. :(
Anyway, for the most part, I'm not picky about which stickers I collect as long as the poses are fun. Specific wants will be listed on my wants page. Also, I'd be happy to trade TCG for stickers! ^^
Gen 1 - Meowth
Gen 2 - Totodile
Other - Ralts, Trapinch, Jirachi