Last year we printed a design manifesto by Emily Pilloton of Project H Design in which she mentioned the Hippo Roller. To refresh your memory, the Hippo Roller is a simple polyethylene barrel that African villagers can fill with water and roll back to their homes by means of a handle, rather than having to carry it all the way back. Nearly 30,000 Hippos were produced and distributed thanks to the largesse of donors. Check out this video to see them in use:
But while the design of the Roller was sound, manufacturing and delivery logistics were getting in the way--the seemingly simple device was costing $100 each to make and ship, meaning the donations of so many would only go so far.
The San Francisco chapter of Project H then went back to the drawing board, redesigned the Roller in two pieces that could be nested, drastically reducing shipping costs; adding a cap to the barrels and making both stackable means more than 250% more of them can be shipped in the same container.