Coffee mug (Fallout 3)

 is an item in Fallout 3. Found almost every-where, these pre-war items, originally designed to carry hot beverage, now sit broken and unused in most places. Much more commonly used to carry beverages is the Drinking Glass, which can also be found in most bars. However, neither of these items have any use whatsoever in game, exept for Rock-It Launcher ammunition. Coffee Mugs can be found in vaults, office buildings, general stores and even your own house.

A Great Place to find a lot of coffee mugs(~30) is in the robot repair center when you first enter the building.