Plunger

The plunger is a melee weapon found in Fallout Tactics. In Fallout 3, it is useful only as Rock-It launcher ammunition. Located in toolboxes, toilets and storage rooms across the wasteland.

Fallout 3
Inside the DC ruins hides a room called the plunger room of death. This room is located inside the shelter and holds multiple plungers, a single feral ghoul, and bloody hand prints decorating the walls and ceiling. Video

Fallout Tactics
More of a joke than anything else, the plunger is a useable weapon in Fallout Tactics.

Locations

 * On a workbench inside the hostage building in Brahmin Wood.