Sculpting
I have used many different types of clay to sculpt, including WED Clay, NSP Chavant, Monster Clay, Polymer Clay, etc. Below are some sculpting examples.
Texturing is cruicial in creating a realistic sculpt or prosthetic. When sculpting something for a silicone prosthetic, the texture should be oversculpted by 10%, this is because silicone is translucent and some texture will be lost in the silicone.