Some years ago, I enthusiastically reported on the optical illusion coasters created by BBDO New York for Guinness brand beer. They were a low-tech way to create conversation and engagement with the product.
Here we are again with a product-activated higher-tech idea. When Guinness is poured into a specially marked glass a QR (Quick Response) code is revealed.
What’s sneaky is that a golden colored beer won’t work, it’s gotta be a dark beer like a Guinness.