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When I was making surf hog eels, I would carve a wood model. Then I would seal the wood with epoxy to it was not porous and make a mold of that out of 2 part RTV silicone. Then I would make several hard resin "plugs" out of the mold to use to make a production mold. The production mold should have as many cavities that can accommodate your melting capacity. It's easy and a lot of fun.
Posted from my iPhone/Mobile device
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