This is a video of the 3-D printed gun that Youtuber Paperfliegerei built that's capable of folding and shooting paper airplanes. It's powered by a cordless drill and can fold and shoot a paper airplane about every three seconds. For reference, that is entirely too slow to bring to a real gunfight, but perfect for a kid's birthday party. Learn a few magic tricks and how to twist balloon animals and you're the total package! Bring a bounce castle, cotton candy machine and a miniature pony and you're pretty much my dream birthday.
Keep going for a video of the gun in action.
Thanks to Arrogant Tiger and Lindby, who are hard at work developing a paper ninja star gun.