Make beer, not war.
gabeweb:

50 Caliber Bullet Bottle Opener

Short of opening a bottle with your teeth, we can’t think of a more  manly way to crack a cold one than with a demilitarized .50 caliber  bullet casing…which is exactly what this is. Made in the good ole US of A  out of military grade ammunition, this bottle opener is probably the  only way most of us are ever going to handle a fist-sized .50 cal round,  but we’re ok with that.

(vía Cool Material)