Avoid dead camera batteries by putting a strip of solar panels on your camera strap. Simple, and rather clever, right? That's exactly what Weng Jie's Solar Camera Strap does, although in coming up with the design he forgot an important point: you can't charge batteries while they are in the camera.

While some cameras come with charging docks or have their chargers built in so you just have to plug in a cable, most require a separate charger into which you pop the battery: a far better solution which doesn't put your camera out of action as it juices up. Weng's device runs the power generated by the strap into the camera's DC-in socket via cable. This would let you use the camera as long as the light is bright, but there'd be no buffer if the Sun were to dip behind a cloud (there are a pair of batteries within the strap, but that's not really ideal).

Still, those are mere details. Give me a way to use my camera all day without having to worry about running out of power and you'd have my cash. If you ever sell this strap, Weng, get in touch. And please, please make it in a darker color so it doesn't pick up my neck-dirt.

Power Around My Neck [Yanko]