Coca Cola Hug Machine

Ever thought about hugging a vending machine?

Cocoa Cola made it happen!

In 2009 Coca Cola designed a range of Happiness Machines to have consumers interact actively with the brand. I very much like the concept of Coca Cola Hug Machine, with stimulation sensors it detected when it was hugged by one person or more and would then give out a free Coke. Who would have thought you see people hugging vending machines!?

What other things could be done to physically involve people or even group action?