Slingshot lover and—let's face it—borderline maniac (in the best way) Joerg Sprave definitely took things to one extreme when he created an enormous slingshot cannon that fired ridiculous chainsaw halberds. Not to be outdone, even by himself, he's back at it with another ludicrous invention that goes with speed over size: a fully automatic slingshot mini gun. Really, what could top this? Read More >>