Here is my tip for using 40 Volume for skull whitening. I know 40 volume is not expensive but I don’t like wasting stuff so I only put it exactly where I want it by using a sort of papier-mâché method of soaking small squares of paper towel in the solution and then applying them to the skull. I use far less but exactly enough to soak the skull. Then I wrap the skull in plastic wrap for 24 hours. After 24 hours I remove the plastic wrap and give the skull a jolting shake over a trash can and the squares slip right off. I rinse under water and let air dry. I don’t use basic white or any other whitener. When the skull is dry I spray it with clear lacquer. Here are some that I finished this week.