What Christmas would be complete without the DIY Christmas Cannon that shoots festive decorations and/or cheer onto presents, trees, and unsuspecting guests?

The cannon is made from a simple mish-mash of PVC pipes, a schrader valve, and a bike pump to pressurize the air. Once everything is all set to go, the Christmas Cannon is “loaded with the spirit of Christmas” and “is then aimed at something horribly devoid of Christmas-ness and then blasts it with goodness.” Good stuff. It’d probably double as some sort of summertime cannon, too, shooting out the spirit of hotdogs and fireworks and whatnot.

Christmas Cannon [Instructables]