Pool ball (Fallout 3)

Pool balls are miscellaneous items $$

Gameplay
Pool balls can be found in various areas throughout the Capital Wasteland. They can be used as Rock-It Launcher ammunition. They are usually found alongside Pool Cues and triangles.

List of the different types that appear in-game:
 * 2-ball
 * 5-ball
 * 8-ball
 * 10-ball
 * 13-ball
 * Cue ball

Locations
Though not often found as random junk, they are frequently seen near or on pool tables. Some locations include The Muddy Rudder, Rivet City market, slaver barracks, and Old Olney. The lucky 8-ball can be obtained from Timebomb in Big Town.