If teens want to think outside the box for Halloween, they should consider dressing up as a thing, rather than a person. One trendy way to do that is to make an iPhone costume. Teens could create a sandwich board out of two large pieces of black poster board that are connected at the top to sit comfortably on their shoulders. From there, they just have to decorate the front of their costume with whatever application icons they can design. If hauling around poster board sounds too cumbersome, a teen could simply adorn a black sweatshirt or long-sleeved shirt with smaller application icons. Steve Jobs would be proud.