I don't think you can get a 'toy' cat like you can get a toy poodle and some other dogs. The Munkin cat, though, has shorter legs than most cats and I've heard they don't get very big.

My mum has a cat that is three or four years old, very healthy but still the size of a half-grown kitten. Pitty is just a regular kitty but the vet says she's probably not going to get much bigger. She's healthy though and that's what counts!