Get a carton and cut the top off. Cut it in half the long way. Cut a small hole in the middle of one of the short sides of the carton. This is where the balloon will go. Put the balloon in but don’t blow it up yet. Makes holes on each side of the carton for the axles and stick straws through these holes. Try to put these through the holes. Attach the spools to the straws and put pins through the straws to keep the spools on. Blow the balloon up and let it go.Do not tie it.