The way that I do it is Heat wax and then quickly put a streak in a board, and repeat...its better than leaving it dripping for too long and then realiziing oh $#@%$ the wax is smoking because its on the iron.
I do it like: YouTube - #318 How To Wax A Snowboard
But I never thought of crayoning and then just melting that.
Bindings: Burton Missions 07
Boots: Burton Freestyle 07