You might not be able to afford the sort of full-sized windmill that David Cameron would want on his roof, but if your Dad's a tech-head, the HY mini wind turbine would make a great gift this father's day.
It's a universal charging device that charges cameras phones, iPods and other personal gadgets, getting its energy from the wind. Dad can either find a blustery spot to catch the breeze, or for an extra boost, attach the turbine to his bike or clothing when out and about.
£39.95 from Ethical Superstore
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