We've all done our fair share of chucking paper aeroplanes at friends. And maybe, if you're a real engineer, you've made some clever, paper-folding modifications that let your plane do a loop -- or better yet actually land on target. Joerg Sparve has turned his eye towards those paper aircraft, and needless to say, the outcome can do damage.
Slowly improving from standard plane to all-out slingshot-powered flechette with custom-hammered metal frame, Sprave takes the concept to its extreme, and the result isn't something you'd want to lob at your coworkers from across the office. Unless those guys are arseholes, but still, stick with the pure paper, ok? [The Slingshot Channel]