You can buy collectible tiny food from your local Japanese import store. Those are pretty amazing, and I confess I am guilty of buying quite a few little sets, but they're nothing on the handmade creations of Kim Burke.
The textures she pulls off at such a tiny scale are incredible.
Each piece has it's own sheen.
Her cat is pretty impressed, too. Or maybe upset, since it's too small and inedible to eat.
Look at her Flickr for a ton (a gram?) more cool work. She sells things on Etsy, too!