In Make Vol 2, we ran instructions on how to make a marshmallow shooter gun. At this year's eTech conference, we brought a bunch of supplies so attendees could make their own.
Scott Beale of Laughing Squid took this awesome photo of a marshmallow gun in action, and it was picked up by Fark, where countless funmakers fired up their copies of photoshopped and tweaked the photo in hilarious ways. Link