I usually use my electric roasting pan (make sure you do it outside) with some baking soda mixed in. The teeth will fall out, taking a pic before hand is a great idea, but with a little time they will glue back in (hot glue works great). Be sure and change the water every so often. The baking soda will make everything fall off the skull, very little scraping will be needed. After it's boiled, I soak mine in camp stove fuel to remove the oil from the bones. After that, soak in hydrogen peroxide (if needed). Most farm stores have gallon jugs at a decent price. Good luck and be sure and share your results.