I need to make some plaster casts of dog bone treats so I scrounged up two sizes of dog bone treats and am in the process of making some molds of them using Mold Builder a latex material.
A fresh coat of Mold Builder applied to the dog bone treats. This is the fourth coat and I will probably add a few more coats of mold material until the molds are thick enough to hold the Durham's Rock Hard Putty without sagging.