What a cool idea! To have children creating energy, and enjoying themselves at the same time, is a neat idea. It gives the children a good feeling in knowing that they are helping themselves. More sOcket balls should be imported to these countries so children can feel that they are doing something to help themselves and their communities. I am wondering however, how much cost is involved in making those balls and how long they are able to last as this is for sure an important aspect in the succes of these balls.