The team behind the surprisingly popular “Not Available on the App Store” stickers, who are ostensibly studying digital media and interaction at Hyper Island, seem to have a knack for playful ideas that emphasize getting offline.

Their newest project is Social Planes and it’s a very simple concept: pre-printed templates for paper airplanes that you can customize and throw at random people whose days you’d like to brighten. The video tells the story nicely, though presumably it’s also an accurate representation of the reactions they actually got—the idea is almost too cute by half, and in the real world I can imagine it inspiring as many awkward (or worse) situations as friendly interactions. Still, if it puts a smile on someone’s face, that’s something.

More at socialplanes.org.