Thought I would change things up a but and work on some Dragon's teeth tank traps. I have made two versions, the first a card board mold that only survived 3 pourings and the second a plastic mold from sheet styrene. I am using pam as a mold release agent and plaster of paris as my medium. So far I like my shape but I need to work on my mix. I made it a little soupy to reduce air bubbles in the molding but they aren't drying very well. they still seem brittle.