Bleaching bones
Any bones or skulls you collect can be whitened up without using chlorine bleach, which can weaken the bone. Use concentrated hydrogen peroxide, which will fizz and brighten bone to a brilliant white very quickly. You need stronger stuff than the dilute peroxide found in drug stores. Head to the hair care aisle or hair product stores, and look for bottles of concentrated H2O2 in bottles labeled as Clairoxide or the like. — KK