Open one can, have friend hold upright. punch hole in bottom of second can, clap on top of first, and hold together tightly. Have your friend duct tape the cans tightly together. Then open second can, and repeat process with third, fourth, etc. IMPORTANT- when you are ready to “do it,” vent the bottom can (stab a hole in the side like you’re shotgunning it) and lift the assembly over head height. Ya crazy kids.