You could try looking on pinterest! They have almost everything on there lol
You can buy paper maiche In the craft section at wak Mart and make your own. Just make sure you use A LOT an I do mean A LOT of Vasaline or massage oil on your stomach first or it will all stick to your skin and make a mess. Some people even wear t shirts.
I it like a clay one or paper machay
I bought mine at baby r us and it was only $20 bucks.... And it gives u a whole kit ;)