Q: Who is behind LPF?
Little Planet Factory started as a personal hobby and interest by George Ioannids @Kupeplex who grew up watching Cosmos, is a great fan of Douglas Adams and happened to have past experience in full color 3d printing, thus decided to sort of intersect all three.
Q: How large can a globe be?
Q: How small can a globe be?
Q: Why are the large globes so expensive?
Unfortunately it can't be helped! The outer surface of these globes requires making use of a proprietary 3d printer ink. This means that every time the radius increases, consumption increases by a close to 4πr^2 relationship, r being the radius.