Party HatStanley is a piece of headwear in Fallout 3.
Gameplay
Almost identical to the regular Party Hat, with the only differences being that it has no Damage Resistance.
Locations
Worn by Stanley Armstrong at the Lone Wanderer's birthday party during the quest Growing Up Fast.
Notes
The Pip-Boy's icon for the party hat shows it decorated with a swirl, but the world model is instead decorated with circles and spots.