From Quirky to Genius: Discover Japan's Unique Inventions

10. Canine Sunglasses

What it is: sunglasses for dogs that shield their eyes from sunlight. Created in 2013; Average Cost: $204* The creators of Doggles saw that their pet was squinting and missing the ball when playing fetch in the sun, so they decided to create a product to solve this problem. This concept would grow into a $3 million business that is still expanding.

Dog Sunglasses, Dog Jokes, and Pinterest Doggles are sunglasses for dogs. Doggles can help older dogs with cataracts from age-related disabilities see "slightly better" on a "sunny day," according to Outside Online. In addition to eyewear, Doggles now sells a variety of pet supplies, including beds, bowls, boots, carriers, and more.