Clay animal rattles really do rattle after they've been fired! Don't forget to poke holes somewhere in your animal so the smoke can get out. See below for complete instructions.
2) Make 4 or 5 pea-sized clay balls and wrap them individually in small pieces of newspaper.
5) Attach the appropriate body parts for the animal you are making. (Wings, beak, ears, tail, horns) Make sure to smear and smooth the appendages onto the animal, don't just stick them on or they'll fall off.
I recommend firing once before applying the glaze because the parts tend to be very fragile, and they often break before firing if they're handled too much.