10. Solar Bra Charger
Women who want to clutch green issues close to their bosoms may soon be able to do so with the invention of a solar-powered bra. The canny bit of underwear has been designed in Japan and has the ability to generate enough electricity to power an iPod or keep a mobile phone charged. It works via a solar panel which can be worn around the wearer's stomach and therein lies the obvious problem – how is the sun going to reach the panel if the woman is respectably attired? Yoshiko Masuda, a spokeswoman for makers Triumph International Japan Ltd, admitted: "It might be difficult to put it to practical use considering people usually cannot go outside without wearing clothes over it, and there may be few places like a balcony or a garden in your house where you can use it outside."Aptly, the 'Solar Power Bra' comes in a fetching green colour and can be powered by solar or electrical energy.