Drone 100; art using quadcopter swarm

http://iq.intel.com/100-dancing-drones-set-world-record/?_series=ces-2016&dclid=COKN2sTBmsoCFQJCAQodWcsGtA

"When all 100 light-equipped drones danced and painted 3D shapes and messages in sky above Hamburg in early November, a new record was born.  Dubbed Drone 100, the spectacle set a Guinness World Record for most UAVs airborne simultaneously."

and here's the video;