Although some USB gadgets are either useless trinkets purely meant for fun or so impractical that they border on the ridiculous, sometimes USB manufacturers get something right. The new USB Solar Charger from Japan's Thanko is just one such device.
Although the makers claim the device can charge a variety of objects, it appears that its main focus is charging mobile phones. And, if you're experiencing a series of cloudy, sunless days, you can also change the device via USB outlet on your computer. You can pick up your solar charger for just 1,980 yen ($21) here.