Another example of how we couldn't have pulled this off without volunteers! lilikoiknits did this knitted QR code, and it really works! It was a little nail-biting there for a bit - she finished it during an Aloha Knitters meeting and we started testing it out with our smartphones right away. We must have sounded like we were celebrating a sports team win when it worked.
Almost 200 motifs, most of them crocheted by volunteers. Wouldn't have been able to plan out a totally crocheted yarnbomb without them!