Build Your Own Mofo Pneumatic Snowball Cannon

You'd better be dead serious about your snowball fighting if you want to build this pneumatic snowball cannon. If you already own an air compressor, you can build it with $50 worth of parts and a heaping helping of patience. Team this sucker up with that Sno-baller we showed you earlier today, and your snowball-fighting army will be totally invincible. [Instructables]

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