Re: Fett ESB helmet mold?
If you scratch build a helmet then you do not need a mold. I think by your description that what you really want is going to be a cast. The actual molds don't come up for purchase very often and then when they do, you would spend very big bucks to buy it.
The cast is the actual helmet that comes out of the mold. When you buy a cast it comes unfinished, and you would then finish it and paint it.
To scratch build you make it out of paper or cardboard using templates and then you use resin or fiberglass to harden it......then you finish it out and paint it.