https://www.cnet.com/news/time-magazine-hover-cover-made-from-958-intel-drones/

Time teamed up with Intel and its Shooting Star drones to light up the night sky in California with a re-creation of the magazine's red logo and border. It then ventured into drone-ception territory by filming the hovering cover with yet another drone.

The cover spanned a height of about 330 feet (100 meters) and required 958 drones flying in close formation.