Remember all the jokes about the hamsters going on strike, or the hamster wheels no longer turning? It was bound to happen that it would become a reality, as a student modified his hamster's wheel to enable him to charge his mobile phone.[Ananova]Peter Ash, of Lawford, Somerset, attached a generator to his hamster's exercise wheel and connected it to his phone charger.
Elvis does the legwork while Peter charges his phone in an economically and environmentally friendly way.
2 minutes of trundling gets Peter half an hour of talk time. Pretty nifty!