Wild Yet Genius: Japan’s Most Unusual Inventions

11. Bath Cushion or Phone Strap

What it is: A bathtub pillow with a waterproof phone case Invented: 2015 Average Price: $37

Thanko’s Bath Air Pillow props up your head while holding your smartphone safely above the suds.

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Shower Cushion/Mobile Phone Stand @RandomGoodStuff/TTwitter.com

Offered in gray, pink, or white, it turns bath time into spa-style relaxation.