Ice cream vending machine
You will see ice cream vending machines while traveling in Japan. They are placed in stations and popular sightseeing places.
When I was young, I would often buy 17 seventeen ice after school. セブンティーンアイス

Ice cream vending machine
130 – 200 yen

Website (in Japanese)
https://www.glico.com/jp/product/ice/17ice/

A book about Japanese ice cream
Ice cream book
https://www.amazon.com/dp/B019C6BT02/

Give it a try in Japan!