Bottle Cap (Fallout 3)

Bottle Caps are the standard currency of the Capital Wasteland, and a component of the Bottlecap Mine $$

Gameplay
Bottle Caps make a return as the standard currency of the Capital Wasteland. In addition to standard methods of acquiring Bottle Caps (finding, trading, stealing, killing, etc.), the player character will gain a single Bottle Cap for each bottle of Nuka-Cola consumed. Bottle Caps can also be put to use in weapon form as one of the major components of a Bottlecap Mine.

Locations
Found everywhere throughout the Capital Wasteland.