Hogwarts Express Costume

This is a homemade costume I built for a special need boy I take care of. We share a passion for Harry Potter and he is in a wheel chair so the hoggwarts train made perfect since. It is mainly cardboard. I used wood to build a frame around his chair covered it with cardboard. Spray paint , toilet paper rolls for smoke stacks and cotton balls for smoke. I am the caboose in the back pushing him. My costume is just a box spray painted. We are both in are Harry Potter robes.