Aussie photographer Jamie Carl needed to take some fast moving photo action from the outside of a car. Problem was, he couldn't control the manual settings while the car was speeding along. So he built himself a wireless tethering kit for his Nikon camera.
Consisting of a Trulink wireless USB adapter kit, a 4 x AA battery pack and a 1/4-inch hotshoe adapter, the entire DIY project set Jamie back $224, plus a fair amount of time and effort. Hit up Jamie's site for the more technical breakdown of how he built it, but if you need to remotely control your camera but don't want to fork over $1,000, this is a pretty simple and cost effective way of doing it.