Rubberband Machine Gun
Rubberband Machine Gun$395.00 from Backyard Artillery
From site: "This beauty is a fully funcitonal machine gun with TWELVE rotating barrels and a live action trigger. Loads 12 bands per barrel for a whopping 144 rubber bands that shoot off as fast as you can turn the handle! Great fun for kids of all ages. MORE than just an amazing machine, this is a true work of art." Just wow. You can also purchase the plans and build it yourself.