Same concept as the rocks. I use a rubber latex molding material and brush on numerous thin coats. Then cut out the cactus, use car wax as a mold release, mix and pour bondo/fiberglass resin....pop out the cactus cast, rinse in HOT water and then paint. Of course with my taxidermy mounts I am gluing the cactus spines back in, for your snakes you can skip that part.
Kerby...







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Life is like a bunch of fish in an aquarium....we all get along (bonding) until I want to eat you....and I do.







