QR codes can and should be a fun way to engage with consumers while helping them bridge the online/offline gap. That is why we created QRstyler with our team at GotWebDev, Inc.
In the process of delivering a platform that helps you create useful physical hyperlinks, we became somewhat expert in making them both visually appealing and evocative of what they represented (linked to).
This particular code design was one of my all-time favorite examples.