Lucky 8 Ball

The lucky 8-ball is a unique pool ball in Fallout 3.

Characteristics
It has a weight of 1 and increases the Luck stat by 1 point (up to a maximum of 10) as long as it is carried in the inventory. If you drop it (including storing it in a locker in your house) you will "no longer feel lucky," and the Luck bonus will be removed until you pick it up again.

Unlike normal pool balls, it can't be used as Rock-It Launcher ammunition.

Location
The lucky 8-ball can be obtained by healing the injured Timebomb in Big Town. It will only be given to the player by Timebomb after the super mutant attack is repelled.