The science fiction role-playing game Traveller tried to use the Pony Express as the logo of the Imperial Interstellar Scout Service, which operates the similar Express Boat network. But the (in-universe) designers of the logo did not do the research and didn't realize a pony was a small horse, instead thinking it was a similarly-named creature from another world. Thus, the logo features a horseback rider on an eight-legged dinosaur.