QR codes are one of those technologies where the execution just hasn't lived up to the concept. But every now and then, someone comes up with a cool application of those little black squares. Berrge Tattoo in Istanbul uses this newspaper ad to make sure their tattoo artist applicants at least have the fine motor skills for the job. In order to reach the job application, they must black in the appropriate squares and scan the QR code.
So lots of people have I.C.E in their mobile right. How about having a QR code tattooed on your shoulder blade / back of the neck that leads to a website, accessible only by the emergency services, that details your blood type, next of kin, medical history etc?
Obviously most people will baulk at this idea, but can we extrapolate from this and come up with something useful?