Harmonica (Fallout 3)

s are stashed sparsely throughout the Capital Wasteland. They are useful mainly as Rock-It Launcher ammunition and can be bartered for a small amount. They are somewhat rare, as there are maybe only about 10-20 in the whole game.

However, few feral ghouls and Centaurs spawn with this item, making virtually infinite amounts of harmonicas. However, they are still a rare spawn in the corpses' inventories.