Well that was a $100 lesson in how to mess up a mold and a cast! Lots of problems--air bubbles galore, seams don't line up perfectly, and for some reason, the main piece is still a little gooey in places even though I let it sit overnight. Oh well, at least I learned a ton, so I'll give this another go. This time I will do each one as a two piece mold, with extra air vents and I'll get an experienced friend to help. Yup...
Here goes nuthin! I'm about to pour the molds for these. Last time I made a mold was in art school and I think that was plaster of Paris. This time I'll be using a silicone rubber called Dragon Skin made by Smooth-On. Pot life is about 8 minutes and it should set in a little over an hour. On the main piece I've added air vents made from coffee stirrers to prevent bubbles from getting trapped. The larger drinking straws are going to be the pour spouts for the casting material. Hopefully, this will be a successful first attempt, cause Dragon Skin ain't cheap!