From the correct angle, (mostly from below) this hyper- precision fireworks display salvo features a QR code for a split second as the charges burn themselves in white glory.
-- RayfordSteele, Jun 09 2022

Drone swarm QR code https://youtube.com/watch?v=eSvC1_ZgCtI
[a1, Jun 10 2022]

Seems very doable with drone swarms, surprised it hasn't been (or maybe it has).
-- tatterdemalion, Jun 10 2022


Guess it's been done but doing an override bun because this is a great idea.
-- doctorremulac3, Jun 10 2022



random, halfbakery