This one I had to share ..
A scannable QR code advertisement created by drones above the skies of Shanghai.
I completely concur with the article in believing the this could very well be the future of advertising. – https://futurism.com/the-byte/swarm-drones-creates-huge-qr-code-sky
Hmm .. I wonder if anyone has tried to using a QR Code with a Holographic Display LED Fan?
If you have one try it out and let us know : )