Molds by UnaOdd-Lynn. Used a product called Knead-a-Mold, from Townsend Atelier. It creates a silicone rubber mold that sets in less than 10 minutes. The final mold can be used in the oven (for polymer) and is food safe as well. - Use for soap molds?
Check out info on resin casting. You have a mold, mix the resin with a catalyst. Whatever is in the mold gets embedded in plastic. - This link doesn't include info, but it's a reminder to go check out more info on resin casting