Bio-charger

Not only are conventional chargers unsightly, earning them the nickname "wall warts", but often they also consume power needlessly while not in use.
The BioCharger180 from French company Mayamax is made from recycled plastic and is 40 per cent natural fibre. A built-in timer prevents it charging a gadget for more than 3 hours at a time to prevent it leeching energy unnecessarily.

(Image: Greener Gadgets/Mayamax)