Plastic moulds for everyone!

Here is the instructional website

http://www.instructables.com/id/How-to-Make-Your-Own-Prototypes-%3a-How-to-make-your/?&sort=NEWEST&limit=50&offset=50

And here's what I made!



And here's the vacuum





Here's some other stuff I looked at:

Rubber Moulds (using tape as shim line)
http://www.instructables.com/id/Moldmaking-With-Clear-Silicone-Rubber/

Lost Foam Casting
http://www.theworkshop.ca/casting/foamcasting/foamcasting.htm