I'm new to the forum, and thought I'd post some pics of a prop I'm working on- it's a giant anatomically accurate skull- pictured with it is the Revell visible skull for scale. Let me know what you think!
I started out with a large block of expanding foam, which I then cut/ground to the general size. Then, I applied a thin coat of bondo to seal it, and sculpted the details in Aves epoxy putty. I'm nearly done with the pattern finishing, and then on to molding!