Lucky Dice (3.5e Equipment)
From D&D Wiki
DiceDie: Looks like a normal white d6 dicedie.
There was a man, his name was lost to history. One day he found a
dicedie on a corpse in a river. He felt lucky and so he went to a casino to win a fortune. He has won every game and went out a rich man. Later that night he was killed and robbed by a thief that took his dicedie and his gold. The thief felt lucky and went back into the casino, with his new lucky dicedie.