Monday, April 30, 2012

QR Code on a pint of Guinness

This is very clever.  The QR code is printed on the glass, and only works when Guinness (or another black liquid) is placed inside.

The QR code then allows the phone owner to tweet about the pint, update Facebook, and more.

More here

Update - this is a similar idea - a QR code as a shadow, in South Korea.

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