If you've ever been to a convention like New York's Comic Con, or even a smaller one, you know that cosplaying is serious business. "Cosplay" refers to dressing up like characters from your favorite games, TV shows, and movies. Some cosplayers create faithful reproductions of the characters as they appear originally. Some have fun putting a personal spin on the character, or even combining two fictional universes into one costume. (If Lord of the Rings was mashed up with Star Wars, for example.) The costumes can get pretty complex. Dedicated cosplayers will also include accessories like makeup, hairstyles and, of...