What do you get when you mix the weapons of different cultures together? Joerg Sprave has outdone himself this time. His newest invention, is the craziest weapon he's made.

Aptly and subtly titled "Shaka Zulu's Wet Dream," Joerg's assegai-thrower is menacing even with its name. Its not an easy weapon to use, and it requires you to tie it to a tree and hold it between your legs and grapple with massive industrial rubber bands. It uses a Zulu spear as ammunition, not something you can actually carry around everywhere.

But here's where it hurts. It's got 200 pounds of force, and it's enough to lodge itself so deep into a tree even Joerg had a hard time removing it.