Office warfare? Need to lay siege to the marketing department? Does someone keep stealing your soda from the staff fridge? Get revenge with your very own trebuchet. Fashioned from common office supplies, it’s a formidable weapon at ranges of up to four feet. Use a can of soda as bait to lure them closer.
While you’re there, be sure to poke around further on the Instructables site. It’s well worth it. If you want to bring your arsenal into the 21st century, be sure to check out these USB air darts. To think we grew up in an age where all we had to fire at each other were rubber bands.
Bonus educational reading: Wikipedia article on trebuchets.