Klutz Face Painting. It is full of face painting ideas and comes with non-toxic water based face paint. The colors are your basic primary colors, but you can mix them to make other colors. It comes with a brush and foam applicator.
The book has detailed instructions to show you how to make all sorts of fun faces, like a tiger, vampire, Frankenstein, leopard, and many more. It includes little designs and tattoos so you can be as elaborate or simple as you like. This would make any event more festive but I think it would be perfect for a Halloween party. Find it HERE.