Painting with light
Imagine looking into the night sky and seeing... a teapot? Well, it is now a reality!
ars electronica, future lab have been working to develop formation flying quadcopters (no, I didn't know what those were either so I had to look it up. Now I want one.) which use lights as pixels, drawing and painting in the sky. Have a look at the show in Europe this year and watch the videos on designboom.com's page. What an evocative and strangely moving display.
(Image from ars electronica and gregor hartl fotografie)