NISA and Valve have teamed up to bring some Disgaea PC items into the Team Fortress 2 universe.
Prinny Hat - The preferred headwear of all Prinny aficionados. Keeps your head warm and toasty while displaying your fandom for all to see.

Prinny Pouch - The official pouch issued to all Prinnies. Hide your coins, hide your knives.

Prinny Knife