We’ve searched for an English version and can’t find one, but even if you can’t speak Spanish the video is a nice watch.
Milka vending machine gets people to hold hands
Swiss-based chocolate company Milka has joined the ranks of novel vending machine stunts with a campaign that calls for Argentinians to “Dare to be Tender”. 
In order to get a free bar of chocolate from the machine people had to hold hands and reach for the hoof of a large, purple Milka cow (yes really!). The cow was remote controlled and so moved further and further away from the machine in order to get more people involved.