Krispy Kreme shares glaze waterfall as 'the world's tastiest coupon'

Krispy Kreme is giving away 12 free doughnuts on December 12, which they're calling #DayOfTheDozens, to people who purchase a dozen doughnuts.

To enable customers to easily get these doughnuts, the company has created what it calls "the World's Tastiest Coupon," a video that show doughnuts rolling under a stream of glistening glaze.

But it's not just for appearance's sake, the glaze forms a barcode that can be scanned to allow customers to get their free dozen doughnuts.