The Red Sword
Cursed by an angry mage who was tired of warriors not having to spend money on anything of consequence, this sword causes dissension and covetousness to all of that profession. Any member of a class capable of wielding swords must make a save vs. spells or immediately desire it, to the exclusion of all else.
This is a simple +1 sword. However it was made with a rare red steel found in one set of dwaven mountains. When the party was offered it in trade for some magic that they could not use, the sword wielding members of the party got into a bidding war and verbal confrontation over who would own the red steel sword. No magic has indicated an actual curse on the blade, but the results speak for themselves.