How to turn a normal piece of cloth into a Ninja Mask?

Recently i bought what seemed like a Ninja Mask from a Halloween costume store, but when i got home and opened it, it was just a long strip of black cloth about 5 ft. long and 1 1/2ft. wide. Does anyone know how I%26#039;m supposed to make a Ninja Mask out of it?|||well...i dont know about the material but here you go...