For yo-yo hobbyists, why not put that time to good use? The Urawaza Spin Ice is an ice cream maker that looks and functions like a yo-yo.

Inside the yo-yo device is a special container. The container is first removed and cooled in a refrigerator. Then the user mixes the desired ingredients into the container, and inserts it back into the yo-yo device. Then, the real work begins.

The ice-cream treat should be ready after about 10 minutes (depending on your yo-yo skills).

Price: 1,575 yen.