I do these in an electric kiln. Most people use a Raku kiln, but that means cracks when any breeze hits the pots. So I build the shelves up to the top of the kiln. Turn the kiln on to high for about an hour then turn it off and start adding feathers, cat hair, dog hair, snake shed, leaves and the normal horse hair. I have even used my own hair. You only have about 3 min. to work in. Then its to cool. The smell is TERRIBLE!!!!
After the pot have cooled off then they can be washed. Then its time for the acrylic spray to protect the surface.