This Halloween, keep it simple and clever and go with an inflatable costume like this cool new Inflatable Riding Gorilla . You just slip it on, flip on the built-in fan to inflate it, and, Voila!... an instant hilarious costume with barely any effort. This ingenious one makes it seem like you're an adventurous explorer being carried on the back of a giant gorilla, but look closely and you'll see how the cool effect is achieved. Even better, inflatable costumes don't get hot. One size fits most.