I want to make a duplicate of my head out of foam, and go as a 2
headed person for Halloween.
I've read up on the instructions on using alginate and plaster
bandages to make a negative of my face, but instead of using plaster
to cast the head, I want to use some sort of foam so that the 2nd head
will be lightweight so I can attach it to my shoulder.
Any ideas on the foam? I'm sure home supply stores have different
foams, and I would imagine I want something that will NOT expand too
much, otherwise it could damage the negative. TIA!