Just saw this now! I made molds to cast in out of cutting board material.. First I stabilized the wood using a vacuum chamber then I Cast it in the pressure pot with the alumilite. There are some good youtube vids on how to do this actually! I never had to use a release agent. This blank anded up gettin glued to my mandrel because I was an idiot haha so didnt work out so hott but learned a lesson and have made a couple calls since that turned out well!