Got a Nike+iPod kit laying around but not doing much exercising with it? Then you might want to follow the lead of SparkFun's Nate, who took the device and turned it into a decidedly non-exercise minded wireless key fob -- or iFob, as Nate has dubbed it. That, as you might expect, isn't exactly a completely straightforward process, and also involves putting an Arduino Pro Mini into the mix, not to mention a bit of minor surgery to both your car and your car's original key fob. If that doesn't scare you off, however, you can find the complete instructions and plenty of helpful pics at the link below, although you're on your own if you want to build something that actually starts your car.

[Via GadgetReview]