From Team Fortress Wiki
The Party Hat is a headwear item for all classes. It is a team-colored conical hat with darker colored swirls, held together by staples in the back. It is similar to the one previously attached to players in birthday mode, this one being larger in size.
- Added TF birthday Party Hat.
- Backpack sounds updated for the Party Hat.
- When viewed in the class selection screen as Sniper or Taunt with melee weapons, the default animation is present. This results in tipping or taking of the Party Hat far from where it actually is.