The always innovative Japanese have come up with a device to encourage children to chew their food properly. The Kami Kami Sensor is a plastic bar with an electric counter that hangs off the ears like eyeglasses and straps under a child's chin, rewarding kids by playing a song when the counter reaches one thousand. The Kami Kami sells for 11,550 yen (about $120) and seems like the perfect solution for parents tired of yelling "chew your food," because certainly a child who doesn't respond to nagging won't rip this device off her head and throw it across the room. [Inventor Spot]


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