Is it possible to do vacuum forming on my own? I'm not talking about forming thick pieces of plexi, but I would like to be able to create molds out of plastic that I can fill with e.g. resin afterwards. I've seen this technique being used on several TV shows (like "Rides" on discovery), and the principle doesn't seem that hard; you have a soft piece of plastic, put it in a frame over the object you want to make a copy of, then you remove all the air from inside the frame and let the plastic harden. Anyone tried this at home?