those, you bring your own rice though, so a bit different. (they're pretty common in the countryside!)
The first time I saw one, I was probably ~6 years old and my grandfather stopped by on our way home to mill some of the rice he had grown. I was confused since growing up in the States, I had never seen non-white rice until that point.
Close to where we used to live, by the bus stop in Hiratsuka, when I used to come back at night, the vending machine was brighter than the public lights.