We’ve covered the value of worm poop, and now it’s time for the merits of cow dung to come to the fore. EcoFaeBrick turns cattle waste into bricks that are greener, stronger and 20% lighter than regular clay bricks.

The Indonesian organization was set up earlier this year to tackle the problem of excessive waste in farming areas. From this, the ecological and economical solution of the Cow Dung Brick was born. There's no visible difference between a traditional brick and the dung brick—and before you ask, there's no smell either. Instead of using wood fire the dung bricks are fired using biogas, helping to further reduce carbon emissions. The new product also lets land be retained for farming, rather than being excavated for clay for conventional bricks, or becoming a health risk due to ‘too much dung’.

A green product that boosts the wealth of rural Indonesians, it's not hard to see why EcoFaeBrick came first in the 2009 Global Social Venture competition. The company has identified 22 areas around Indonesia that they want to expand the project to, plus 22 more in other parts of the world. One to support, or otherwise get involved with!