Here’s an idea (not an actual device yet) that I found at this website: http://www.core77.com/competitions/GreenerGadgets/projects/4673. I don’t know if i would actually use something that big, but the concept is interesting.
7487-greener_gadgets_01_sm.jpg (67.2 KB)
7488-greener_gadgets_02_sm.jpg (77.4 KB)
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that website is super sweet thanks for the heads up 