Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.
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On the forums at Crazy Builders, a maker named “Technician” has posted a series of videos and photos explaining how his quick dump valve high-speed marshmallow cannon works. The cannon is made from some PVC pipe, a propane camping lantern bottle, and some 1″ pipe. It’s a scaled-down version of a larger T-shirt cannon he built for a competition.
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