The M440 ECO Mouse may not have a particularly exciting or original name, but its design is surprisingly clever. Rather than using the plastics that traditionally make up the shell of a mouse, Fujitsu has replaced the casing with a pair of environmentally-conscious alternatives: Arboform and Biograde.
As alternatives to plastic, the pair of materials are pretty neat. They're designed to be fully biodegradable, come from renewable sources and their manufacturing processes produce far less CO2 than equivalent volumes of plastic.
Source: Bit Tech