The Solar System Planet Erasers are 8 tiny planets made from rubber.

Hold the universe in your hands and explore space without the hassle of leaving home. A scale model of the solar system made out of erasers. Well Not the whole solar system, just the 8 large planets orbiting the Sun (the Milky Way contains at least 100 billion planets, that's too many to fit in the packet). And, well not exactly to scale (the vast size difference of the planets is such that Jupiter would have to be the size of football, also too big to fit in the packet).

An educational gift for budding astrophysicists.