Located in Tokyo's Katsushika ward, an interesting small restaurant offers hamburgers in vending machines. Upon inserting a 100 yen, the vending machine will quickly offer a hamburger. However, any attempt afterward will fail to produce a hamburger. After a closer look, it turns out the vending machine is operated manually and can only hold a single hamburger at a time by the man running the restaurant. If you would like a second hamburger, you have to go inside the store to order. A second manual vending machine was added selling "royal" hamburgers for 300 yen. These hamburgers come with the addition of tomato and bacon. Link