Parts were made out of some 3.5" acrylic tubing, styrene sheets, a few washers, and some allergy tablets. I also used a hot glue gun, plastic weld, and modeling clay to build the templates. I then casted them with silicone rubber, and made molds out of some Grey Kwik Kast (plastic resin). After that I build a small 8"x8" vacuum forming box, and made the finished pieces out of .90" HIPS. Here are some photos of my progress: