Shadow QRCode

This is clever.  A company in Korea had low sales during the lunch hour, so they introduced a shadow QR code promotion.  They created a sculpture whose shadows create a QR code (those 2D bar codes you see everywhere) at a certain time of day (around lunch time).  Shoppers who scan the QR code with their cell phones find special deals waiting for them.  Its quite brilliant really.  Watch the video and see.