Born of LOKI while he was in female stallion mode, SLEIPNIR is no ordinary horse. Not only is he the swiftest horse in the world, he can carry ODIN across land, sea or sky, and from the Halls of ASGARD to the Realms of the Dead.
According to some traditional picture sources, SLEIPNIR actually has four legs which are split at the knee to make eight. This doesn’t sound entirely feasible and would probably ensure a hefty handicap at most racecourses.
He’s also supposed to have runes carved into his horsey teeth. But who carved them and what do they say? This could be taking creative dentistry too far.