The Spelljammer Creature Challenge was a contest held on the Spelljammer Mailing List in November of 1999. It's purpose is to create interesting, ready-to-use creatures for Spelljammer DMs.
Borg — Dragondev — Harpooneer — Lanterneye — Ruby Spider — ShiftPet — Space Scorpion — Tastle — Translator — Wildspace Salmon