8 Planets,
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
Made from clay and hanging from fishing line. These 8 planets are miniature versions of the real ones (hehehe) and are very very close to the relative size from each other. The smallest is mercury at 13mm and the largest is Jupiter at 28mm. They aren't all perfect spheres, because our planets aren't all perfect spheres.
Made to be taped or pinned with drawing pins into the roof of the play box, but your could make your own mobile or display in your room.