King Moonracer - Ruler of the Island of Misfit toys in the made for TV "Rudolph the Red-nosed Reindeer" holiday special. What kind of monster would he be in D&D?
One of the fandom wiki's suggested Moonracer was a Griffon.
We may have something here.
Left: Trampier illustration from the Monster Manual
Right: Lockwood illustration form the 3rd Edition Monster Manual. I think we have a winner.
Lawful Good, flies, turns invisible, innate dimension door ability. Clerical spells up to 4th level. For whatever reasons of his own, Moonracer left his sandy desert for the icy one to provide a refuge for the unloved.