Harmonica (Fallout 3)

Harmonicas are miscellaneous items $$

Gameplay
They are only useful as Rock-It Launcher ammunition. They are somewhat rare except for random placement in containers or in different creatures' bodies. A few merchants and traders such as Moira or Crazy Wolfgang will, on occasion, sell one or two. They also usually appear in grocers on a counter or in the aisles.

Locations

 * 11 inside Meresti Metro station.
 * Eight in Evergreen Mills foundry.
 * One in Willy's Grocer.
 * One in the Northwest Seneca Station grocer on an aisle shelf.
 * One outside of the Bailey's Crossroads Metro on top of a suitcase.
 * One on a wall shelf in the hallway to the west (left) of the factory floor entrance in the Red Racer Factory.