In The Gunstringer for Kinect, players got to point their fingers at the TV and go "pew pew pew!" Know what was missing? The ability to point the fake gun at your own head and pull the trigger. Don't know why that feature wasn't included!
Theo Watson has you covered. For Art Hack Day at 319 Scholes in Brooklyn, he tinkered with some PC modding tools to create a rudimentary Russian roulette game using Kinect. Simply mimic the pulling of a gun's hammer with your thumb to "spin the wheel." The chances of there being a bullet in the virtual chamber are either 1:6 or 1:8; if you hit the "jackpot," your head will explode in a satisfying mess of pixels.
Fun for the kiddies!