Wild Yet Genius: Japan’s Most Unusual Inventions

8. Compact Washing Machine

What it is: A USB-powered desktop washer for small items Invented: 2018 Average Price: $47

Thanko’s Mini Mini machine, just 6.3" × 2.9", spins for ten minutes to polish watches, glasses, and more.

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Tiny Laundry for Technology, @jalantikus, and Pinterest

It is an affordable answer to delicate-item cleaning.