From TF2 Wiki
The Handyman's Handle is a headgear item for the Pyro. The hat was released in the community-contributed Polycount Update, it resembles a common household plunger.
December 2, 2010 Patch
- The hat was improved with a new model and texture by the original author.
- The Pyro somehow manages to prevent the Handyman's Handle from losing its grip on his head.
- A plunger is a commonly used tool all over the globe to release stoppages in plumbing. The tool consists of a rubber cup with an attached stick, usually made of wood.
- The Pyro has presumably never actually used the Handyman's Handle to clear blocked pipes.
- The hat's description is most likely a reference to how the Pyro "clears all sorts of blockages" (Sentries,Spies, etc.).
- This hat also shows lack of sanity (ability to be sane) in the pyro.
- The description can also indicate that the Pyro's brain is blocked, thus making him/her insane.
"The Emperor's Trading Advice" This hat, in Unique quality, usually goes for 1 refined metal. Unusual ones with the fly particle effect command absurd prices, however.