My fellow writer Michell Spoden interviewed Germain E. Kwinson of Atlanta, GA - innovator who has designed green music amplifiers made out of natural wood and needing no wires or plugins or power source. That makes them more empowering in a way as the product is not industrialized but sold individually by the innovator.
Read the short interviews at http://www.recoveringself.com/environment/mangobeat-your-new-green-music-amplifier.