We already had the suit, it's a skeleton costume from halloween that I have turned inside out. I bought some shiny fabric from Spotlight, made a little pillow and have sewn some little ridges across the front. The wings were a little girly, bright yellow with sparkles so I spray painted them black, put on some knee, elbow and wrist pads and some big sunglasses and there you have it! Easy peasy.
One happy boy :)