Making a groot bust - help?

[starspangled]

Hey, so I wanna get into sculpting busts, and I was just wondering what is the best clay type/brand to use? I'll probably be sculpting for a while to get the details right, but I sort of want something that can dry in order to maintain the bust (like how air drying clay or polymer clay hardens). I see a lot of people make moulds of it, but that's not really something I wanna do.

 

[Howat Props]

your best bet is probably something like super sculpey. water based air drying clays in my experience arent great, you tend to get lots of cracks when it drys.