Build a working ROKR rotating machine gun with six wooden barrels that index in sequence as you fire. A battery-driven motor spins the barrel assembly while rubber bands release one at a time, up to 36 loaded at once. A two-handed shoulder model with a detachable barrel cluster.
 
The build
Six wooden barrels rotate in sequence, releasing one rubber band per cycle — that's the mechanism that makes this ROKR rotating machine gun different from a single-shot rubber band gun. Three AAA batteries drive the rotation, a clicking mechanism marks each release, and the full barrel assembly detaches from the receiver for reloading. Held in two hands at full size, it tracks targets the way a rotary firearm does, with the barrels visibly cycling as you fire.