How about atop the astro orbiter (like Timothy J Mouse is for Dumbo) and they could call it "Captain EO's Astro Orbiter." Then you could have Wal-E in the Space Mountain que...where that Fed Ex robot used to be and it could be "Wal-E's Space Mountain."
...and finally EVERYTHING in Tomorrowland would have a movie tie in!
Hurray for synergy!!!