This Mystique from X Men Costume was done with blue body paint, a sponge, a scale stencil and black body paint. I wore an American Apparel tube bra and some blue cotton underwear and literally sponge-painted my entire body blue, and then powdered it with some shimmery teal powder.
All products are from sillyfarm.com, and at the time, this was my own hair color, which is Candy Apple Red. Needless to say, I got lots of attention with this costume! I definitely freaked some people out.