QR code that a 5th grade student made

Yesterday in technology club our guidance counselor brought in her iPad. The students were tripping over themselves to see it. Before long, the guidance counselor downloaded a QR code creator onto her iPad and handed it over to a 5th grade student. In less than 5 minutes he had created a QR code and e-mailed it to me. It never occurred to me how powerful these could be, but the possibilities are endless!