Tooth Cake 

Samantha Caba I just googled an image printed it and cut it out

I usually just eyeball it, but I would think 1.5-2 lbs of fondant would work. This was a 10in square cut down with 2 layers of cake.

I googled tooth clipart and printed the image

I used a 9in square cake pan. I google tooth clipart from google then printed on a paper. Hope that was helpful.