Mardi Gras costumes usually take the form of jesters and other fantasy characters; Halloween costumes traditionally take the form of supernatural creatures such as ghosts, vampires, pop-culture icons and angels. It may take a bit of time and lots of practice but all the information is out there. “I reached out to Rosanna Norton, who is the Oscar nominated costume designer, and asked her if she could give me some pointers on how to do the unitard graphics.