Fat Powered Boat

At last, all that body fat is useful for something - you can turn it into biofuel. A New Zealand adventurer is looking for fat volunteers to help power his round-the-world powerboat attempt. He's started the ball rolling by undergoing liposuction:

Mr Bethune said Mr Rees had to probe around a fair bit to get anything and the 100ml of fat extracted wasn't enough to yield fuel.
By contrast, a typical liposuction operation may snare 3kg of fat. Once refined that amount could produce three litres of refined biofuel – enough to drive his Earthrace boat 2km.

There you go - a solution to the oil crisis and the obesity epidemic all rolled into one. If only all the plastic surgeons gave free liposuction operations.