The guys over at L4Dmods have started cracking on custom Melee weapons, which the game supports surprisingly well. This only works with Melee weapons.

Very simple and temporary tutorial.

Riot Shield Mod, using scrapped melee weapon models, when Locally Hosting or Playing as Singelplayer, it has a chance to show up in all games.

Note: While looking through the models myself I found an unused w_didgeridoo.mdl, currently working on a weapon mod to see what that is.

Think of it as a tower hat inspired off this picture. Credit for that goes to the original author, Agent Melon.

Making hats doesn’t seem as hard as I thought it would be. The hat itself it looks something like this:

Classy.

If you’re a server admin and you want to use this with the sourcemod equipement plugin, you can get this from here.

If you’re just a player and you want to replace your hats clientside, download the hat from here. Installation instructions included inside the readme file. Also up at FPSB.

EDIT: Links should work now.