This is a project of the a South African charity called Wheel and Water (http://wheelandwater.co.za/). Among other things, they make human-powered water carts! Not as sexy as the HAPPY, but, according to MIT's Amy Smith, 40,000,000,000 hours are spent just gathering water by the world's poorest people, and products like this can make a significant difference. The site is well worth a look!
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