Ask your child to paint on thick paper space with stars and planets. On another sheet of paper draw a rocket and flying saucer and cut them out. From the back side glue them metal washers or nuts (or staples). Take the magnet and attach it to the reverse side of the sheet with the image space, and on the front side lay ready "rocket" so that it primogenitus. Move the magnet on the sheet. What a miracle! The picture came to life, and in deep space a small rocket can fly from one planet to another.
According to this principle, you can do a lot of interesting pictures: with the sea and ships, with a road and cars etc.
Come up with a mount for drawings, then in each hand you will be able to keep the magnet and control two missiles.