Floats and Boats Expansion Pack

This is an expansion pack called Floats and Boats with four major components. It is designed to combine with any of the pre-existing sets to create a "Hot Air" Balloon (using a helium balloon), and a rubber band-powered boat (using a soda bottle). An additional challenge idea could be a water bottle submarine. The body of the hook and the rubber-band-rod are designed to be the same diameter as the rods which come with the set, and are easily interchangeable. The holes in the balloon clip are the same diameter and dimensions as the holes in the connectors included in the set, and can be easily used with a hubcap and rod. The thin plastic in the middle of the balloon clip can bend without breaking to allow the knot of a balloon to be slipped through and securely held. The curve of the edges ensures that the balloon will not be punctured.The cap of the float is curved, with a notch cut out to allow the hook to attach without sliding around. The cap securely screws onto the body of the float, which is hollow and can be filled with any heavy material to create a weight. It can also be left empty to form a float. Although the hook and the rubber-band-rod are both hooks, the rubber-band-rod is specifically created so that a rubber band used to power a vehicle does not slip off the hook. The hook can be added to any connector.
The boat (rough sketch included) is made of a bottle which has a side cut off. After a rod is placed horizontally through two holes in the sides and a rubber band is looped around it, a hole can be punched in the top and the rubber-band-rod inserted. Hubcaps should be used to hold it in place. The end of the rubber band should be inserted into the hook end of the rubber-band-rod, and a propeller or other connectors can be attached to the other end. On the bottom, a large connector can be placed and holes poked through the bottom for the hooks. The number of hooks should correspond to the number of floats/weights used. Hubcaps should be used to hold the hooks in place. The floats/weights should be filled, and then hooked onto the bottom. To power the boat, the rubber-band-rod should be twisted and then let go of in a body of water, which will twist the rubber band and propel it when released. The "hot air" balloon (rough sketch included) is made of a helium balloon and something to serve as the basket, such as a yogurt container. The helium balloon should be inserted into the balloon clip, and additional connectors can be added underneath. If necessary, a hook may be added, and a weight hung to add additional weight to the balloon. The weight may also sit in the basket. The basket should be attached with string to the balloon clip or corresponding connectors. An additional challenge could be a water bottle submarine.