A recent visit to Mangochi identified an exciting new technology for stabilizing sandy pits. It is in a shape of a Trapezium which allows the neighboring bricks to interlock.
Swiss Technology in Sandy Soils
Rural Sanitation Marketing in Malawi – Learning Together
Learning, sharing and improving rural sanitation marketing across Malawi
Rural Sanitation Marketing in Malawi - Learning Together 
This seems to be a very good technology.
this is wht we were looking for ,…………. i love it
Happy New Year Chrissy and Smart Centre Team up there in Mzuzu! Looking forward to some new posts to stimulate discussion and learning in 2013….what will be the next topic you cover?