I want to give a shout out to Mikey77. Not only is he doing fantastic work with 3D printing and kinetic art, he also created the Oogoo instructable. Oogoo is his substitute for Sugru that uses Silicone Caulk I from the hardware store, and cornstarch. It works exceedingly well for making small silicone parts and seals. It is not high temperature silicone, but it works well enough for low temperature applications like the seals for this oven.