Absolutely! There are flashlights on the market that are powered by solar, by hand, and by shaking. To see some of the options, visit http://store.advancedmart.com/hapoandshfl.html
Yes! There are a number of flashlight models out there that you shake to charge. There are others that you crank or wind up to power. Shop around and read reviews, though; some seem to be better than others.
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