Joerg Sprave is our favourite kind of crazy, a YouTube star who builds lots and lots and lots (and lots) of insane slingshot creations. This time he's applied the art of rubberised weaponry to personal fitness machines.
He calls his new contraption the "Rowboat of Death", and rightly so because this beast fires steel balls that completely annihilate its particle board target. Seriously, I would not want to be on the receiving end of this thing. Sprave also gives a full tour of the rowboat slingshot as well as some of its simple-yet-ingenious reloading features.
Workout + slingshot destruction. For people like Sprave, that's what we call a win-win. [YouTube]