Although QR codes direct mobile devices to digital content, they are typically printed on physical materials, which if over-produced, can add up to harm to the environment. Rather than using printed flyers to distribute a QR code, we invented an entirely new, bio-degradable, easily consumable, environmentally friendly advertising medium - QR cookies. Consumers could eat what they read – on a media that left no harm behind.

With a budget of only US$5,000, we distributed over 8,000 QR cookies within one week. Visits to the bookstore's site increased by 45%, leading to a 12% increase in sales. Most importantly, we strengthened the brand's image as an environmentally friendly business.