Every once in a while, I see a strange combination object that makes me laugh. Today in a game, I accidentally picked up a crude knife off an altar and it was uncursed, so I wielded it to check it out:
an "uncursed lawful orcish knife of damnation (+0, 1d3+5)"
Had to be one of the most rare objects I've seen.
Not that I would ever use it, but still - cool.