Triangle

The triangle is an item in Fallout 3 and Fallout: New Vegas

Characteristics
The triangle is mostly useless, only able to be used as Rock-It Launcher ammunition or for decoration. It cannot fit a full set of fifteen billiard balls inside of it, only taking about four 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 Company outpost near the Arlington Library.
 * One in the Arlington Library, in the media archives.
 * One at Tenpenny tower, in the Federalist Lounge.
 * One in Paradise Falls, in the barracks.
 * One in the Old Olney underground, in the eastern-most chamber, upstairs next to the pool table.