Instead of asking you to pay with cash, a bizarre vending machine called the Miaukomat asks that you pay with a "meow." Designed by Polish ad agency V&P Group, the vending machine was created as part of a campaign to promote Felix Party Mix cat treats. Placed in shopping centers and on walkways, anybody could walk up to the machine and vocalize their best cat impression. Upon hearing your pleading meows, the machine dispenses cat treats for you to give to your pet.
The bizarre vending machine was inspired by the way cats ask for food. In the same manner that cats plead with you for a treat, the machine forces you to imitate your pet to receive a free sample.
A Bizarre Vending Machine called Miaukomat Lets You Pay with a Meow
Alexander Lam — July 1, 2013 — Marketing
References: youtube & adsoftheworld