Order a full pint of dark Guinness beer. Once the beer is poured into the glass, a QR code will suddenly appear and if you scan it with your smartphone, it will engage all of your social media. Check in, tweet, invite friends to join and download coupons and promotions. From BBDO New York.
Read more here: http://goo.gl/zQQ1l
Have you seen any other cool QR code innovations lately? (such as #MonmouthpediA ??)