Every year for Halloween, Karen transforms her son’s wheelchair into a costume of his choosing. He decided he wanted to be Hiccup and Toothless from How to Train Your Dragon, and Karen and her family made it happen with foam board, silicone, a pool noodle, and paint. The end result is pretty impressive. It looks like Hiccup’s riding Toothless through the streets! She detailed some of the construction basics:
We worked the body again with foam board, sanding and sculpting the lines We made a large square block of foam board from glueing sheets together and forming a square. We sculpted the head to shape it and attached it to the bodice part of the costume. We painted it black. We cut out sides of a cheap plastic bowl to form the shape of the eyes and flipped it over and painted the back with paint. (it gives the illusion of a glass like eye) then glued them on and outlined them with silicone. We cut out leg forms in foam and attached to the sides. We used puffy paint on top of the head to give it a scale appearance. I used felt fabic for the wings and the tail. The wings were sewn and then run with wire at the top for shape and stability, and dow rods were run in the middle of the wings for structure. We actually just placed them down the side of the body in between the chair and body and they just layed to the side.
Read more at Coolest Homemade Costumes.