Note: Final product will not have the advertisement on the side encouraging people to test whether or not your hat is actually bulletproof.
The BulletSafe Bulletproof Baseball Cap (currently an already funded Kickstarter project) is a $99 baseball hat with a bulletproof panel in the front crown. It can allegedly stop 9mm, .38 and .40 caliber rounds, although I'm pretty sure your head is still gonna take a beating even without a bullet in it. Also, getting shot anywhere but the forehead will still totally f***ing kill you.
Keep going for the Kickstarter video.
Thanks to JD, who doesn't need bulletproof anything because he can stop bullets like Nemo or whatever that guy's name was in the Matrix.