UPDATE: Well, it was delicious, but ugly. At least it was low fat. :3
These, meanwhile, are not ugly:
um... cranberry fish... ?
My clever sister makes very tiny things out of polymer clay, including pies. You can see all of her work in detail here: Fushica on Deviant Art.
And for my nerd comrades: the Pi Calc applet by Mikko Tommila.