Sculpey and super sculpey is good but there might be better ones that doesnt need to be baked to a tee. Ive used both but it takes close attention to really be able to achieve a proper baking time. Also if you are not careful with these they can burn on some parts 9thinner) and still be half baked in some (from experience) try Pming TF76 as Nettie said, sounds like he's been playing with stuff for quite some time.