Triangle (Fallout 3)

The Triangle is an item in Fallout 3, only usable as Rock-It Launcher ammo or for decoration.

Like Pool Balls, some people collect these due to their rarity & novelty. They also make neat-looking ammo for the Rock-It Launcher. Despite its pre-war use, it cannot fit a full set of billiard balls inside of it, only taking about 4 balls.

Locations
They are pretty difficult to find in the wasteland as there aren't many of them and they are mostly found on pool tables.
 * one in the Rivet City marketplace.
 * one in the Talon camp near the Arlington Library.
 * one in the Arlington Library, in the media archives
 * one at Tennpenny tower, in the fedralist lounge
 * one in Paradise Falls, in the barracks.