I don't recall any published adventures, off the top of my head, other than Carl Sargent's mention that the Orb of the Hatchling belongs to the Great Kingdom's Overking (from the Greyhawk setting).
You may also want to check out Roger E. Moore's "The Orbs of Dragonkind" (Dragon 230, June 1996), which, IIRC, postulates some adventure hooks for the various orbs, too (though it has been awhile since I read the article).