Sand Cast - Creating the item to be casted

So here goes the beginnings of the coral-woman's head.. using plasticine instead of sculpey. Again, on hindsight, perhaps I could have used sculpey to do the form, and after ripping it out, go back to work on repairing it so that I could bake it? I wonder if the heat from the sand when it is hardening will bake the super sculpey in the process, but I didn't want to risk not being able to pull out the object as it would mean that I had to create another sand mold.


I did not like how the face was turning out, and after re-working it at least 3 times (meaning ripping off the whole face to start again, which was a rather painful process), I finally was sort-of satisfied with the shape on the 4th attempt.. which meant I could start adding all the extra details and parts, which was much more fun to work with.