I would like to bake a small 8" round cake with a 3D caterpillar on it. I am rocking my head how to make the caterpillar, what to use. As it will be a smash cake I don't want to use fondant. Do you think if I mash cake scraps with icing together and form a small ball (about 2") it will hold it's shape to decorate/pipe over it? I would like to put the head on top of the first body ball, but I am not sure how it would hold together. Any ideas? I was also thinking maybe use RKT but I never worked with it... any help what else is out there round and small about 2 inch I could use and pipe over it?? Thank you so much