This is more of a Cosplay via Clay post. I Apologize first if I posted in the wrong section. Hi I'm new to these forums and I normally work with eva foam but I wanted to go a different approach to cosplay I've seen many create full body casts and put oil based clays onto them to sculpt their desired armor. For example my first question is are oil based clays are reusable if I continuously want to use them to make sculpt different armors. 2nd how much clay in lbs would I need to sculpt lets say dark knights upper body neck to waist area I would be factoring the fact I will be using a manequin base etc.