Comercial lipstick contains really bad stuff, so this is pretty harmless, basically this is just wax and pigments (acording to crayola website). I don't know how seriously allergic people would tolerate the pigments.
I have just tweeted this, fbooked it and put it on stumble upon, i think this is way cool, and I am gonna have to buy some crayons to make it, would it work as well with normal non toxic, or just crayola x
CO + K User