Mini Basketball
This toy is based on projectile motion and energy transformations. The basket is placed on the board by magnet, and can be moved to different locations. An elastic band at the bottom is used to project the ball into the basket and can be moved to different locations on the track.
The board on which the basket is placed will be metal, the rest of the toy can be made of plastic. The toy should be fairly durable; however, the elastic band may need to be replaced periodically.