At my last work place we had this vending machine with a big touch screen that had a game where you were to pick a square on a grid and possibly win something. I was infamous because I won the grand prize $500 right after I started working there, to the dismay of previous employees that were trying for years.
This machine was running linux and had a fingerprint reader so that you could store money into an account. It also had headlines of breaking news and what not. I remember one day having a conversation with some co-workers about how, ehem, facinating one of the ice cream advertisements was. Think, Magnums from the UK.