Homebrew PCBs

> I made new gears by making a silicon rubber mold of the best 
original 
> gear. Then i just poured some liquid plastic, found from tap 
plastic, 
> into the mold and out came a gear. 


  Thanks for the info on the laminator and the plastic.  I'm very 
very curious about this plastic making method, and I'm going to 
check out the casting newsgroup.  Stephan are you over there already 
too?
  I know it's a little off topic, but can you tell me what these 
products are exactly that you're using?  Like the brand names of the 
silicon and the tap plastic and where I might find them.  Are they 
art supplies, or more hardware/custom job shop type stuff?
 
  Thanks very much for the info.

-Josh