Gone are the days of rechargeable batteries and solar panels, here comes the lemon juice powered Alarm clock. The Bedol Alarm Clock runs for 6-8 weeks, surviving only on water with some lemon juice. Small size and priced at $16, this is something that will definitely find a place on my desk soon (not only is it a geeky gizmo, its also a good recession time gadget to own . Four colours to chose from, you can get one

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