This is how we do it
The material we use for bone and skull arts is a by-product of the meat industry on the island of Java and Sumatra. We does not kill animals just to make crafts..
Type and design
Make sure the material / skull is clean and dry.
Imagine what design do you want to make
Draw the sketch of your design.
Draw until carving area full of sketch
Use a chisel, knife or drill to carve your design as necessary
First of all, prioritize the front area.
After that, continue to other areas.
Boil it with a mixture of peroxide and clean water to make it white and clean of fat. After that, wash again and dry (do not dried under direct sunlight).
Add decorations such as a fibers rope and make a hanger on the back of the skull..