Actually This is the World’s Smallest Washing “Machine”

Half the size of the original 5-ounce Scrubba—the world’s smallest portable washing machine—the pocket-size Scrubba Mini is designed for those ultra-ultralight adventures, where washing a shirt, socks, or under things is all you can do. And it washes well, with a built-in scrubbing board & simple roll-top design. Weight: 2.5-ounces. Another funded Kickstarter.