I\'ve been trying to find matches for Minmus in size. I\'d also like to note that the Kerbin-Mun system appears to be Earth-Moon scaled down by a factor of 10. I have found a few matches, both for its scale size and real size. Charon, moon of Pluto, is 603.5 km wide, providing an almost perfect match for a scaled Minmus. A large amount of asteroids can be matches for Minmus, the closest one of note being Epimethus, a moon of Saturn, at 56km. All measurements are of the radius.