The clay I use has to be cooked and I wanted to leave it in the cast to cook it in the oven to guarantee the shape stays.
She would bark at all the white people who walk by
Tight fill with body filler, cut back, then fill with fine filler or fairing compound (the more you put on the more work you make yourself), fair then prep the same as the rest of the surface and continue. And yes you should be taking lots of precautions to protect yourself and the neighbours, it is why professionals charge a lot, it takes a lot of effort.
I would go to a craft store, the type which sells make it your self crafts and sewing supplies. You may be able to find a large pin in the knitting or needlework area, where I am at they have a store called A.C.Moore. Also go on line and put safety pins, see what comes up.
I think it's against the law to tie one's Wookie to a fire hydrant.