The base is made of carved styrofoam and covered in clay. I made the mistake of buying modelling clay instead of bakeable clay. Has anyone ever worked with Plastimodal before? I was going to leave it for a week and see if it hardens on its own via air-dry method, but if you know for a fact that this is shitty clay, I'll just buy better stuff next time.
I bought plastimodal too. I still shaped my thing, but I put a modeling paste over it (which become hard after 24h (liquitex modeling paste)) so it was good for shaping but other that that, it's not so useful for cosplay props -_-;
Modeling paste is really useful to put over something already shaped. you can sand it too and color the color or the paste with acrylic based colors. http://www.liquitex.com/modelingpaste/
only thing, texture when not dry is like tooth paste...