Stun Knuckles

Hey ladies? Wanna knock a guy down on the first punch? Here's the way to do it! Taser Knuckles! From the makers who gave you sliced bread comes another brilliant idea. Whether the crook attacking you takes the hit or blocks the punch he'll still feel the fury of your fist with this device!

But this looks to me like a man's fist holding it. What on earth a dude would want with this device is beyond me. Maybe it's "Revenge of the Nerds" for the new age?