Mcguires makes a really good mold release wax that I have used. Also check out Soller Composites as they carry a range of material. The hardest part is the mold that you make as that requires the most time to make sure it is what you want and is set correctly to release the product out of it. I have used hairspray on top of the wax as a release agent as well but you have to use the cheap stuff that doesn't have a certain chemical in it. I forgot what it was maybe someone else knows.