Should a Zombie Apocalypse ever actually strike, you're going to want to be armed... and the new, undisputed king of the zombie slaying hill has to be the ACE Ltd. DoubleStar Zombie Slayer AK.
Part rifle, part chainsaw, the Zombie Slayer couldn't have a more appropriate name, and it was one of the most entertaining finds of SHOT Show 2012.
With this thing in hand, the odds are your brains are safe.