This is a good example of how ideas come from wierd places. I as watching the Nightmare Before Christmas for the tenth time with my daughter, and the image of Jacks tower suspended by the stairs stuck in my head. Had to do this to get it out. I know the welding on the trike looks like crap, but the wheels are 9/16 nuts and the whole trike is about an inch and a half long.
EDIT: uploaded much better picture.