My friend was DMing, the campaign dealt heavily with Mind-Flayers and Psionics, and he had made the ruling that "Magic and Psionics are different and separate".
So, Dispel magic wouldn't work on Psionic effects, and Psionic dispelling wouldn't affect Magic.
I, therefore, successfully made the argument that Psionic and Magical augmentations must surely be different, and therefore an item could theoretically be both magically enchanted and psionically enhanced. He bought it.
So, my Cleric of Pelor ended up with a +5(magical), +5(Psionic), Ghost-touch, impacting, something something something something Heavy Mace, OK it was a +10 with another +10 worth of enhancements. It was GROSSLY over-powered while it lasted.
Then I set off a disintegration trap, Botched the save, botched the second pity save he gave me, (yes, 2 nat 1's in a row), and my cleric and his mace went away.
The Mace was then declared an Artifact, not destroyed but taken by Pelor himself. It would resurface several times briefly in other games with that group, in times of need, as a mcguffin, and as a plot tool (The only weapon that could kill a multi-template Undead (Vampire-Mummy? I forget)).