Soft, pillowy, memory foam mattress-y, 2-part Polyurethane Foam for prop making. 

Formulated to be soft but also have a smooth skin for minimal finishing. Perfect for light weight soft forms on costume, gap filling, or prop weapons.

 If you are moulding something like a sword then you might want to try the Black Gun Foam as it is semi – flexible and would hold a form without drooping. However, this soft foam would make the perfect head of a hammer or anything that might make contact with another performer without causing injury.