Found on Kottke …
In the four years since its introduction, the iPod has proven to be a versatile little device. Despite a relatively closed architecture, hackers have found their way in. Content creators and software makers put information at your fingertips when you’re on the go. Would-be designers have added to the fashionable stylings of the now-ubiquitous white ear buds. Hardware makers and enthusiasts have augmented the iPod with new add-on gadgets.
For fun, I’ve compiled a bunch of hacks, add-ons, accessories, and such. Here are 50 Things to Do with Your iPod (besides listen to music with those white earbuds).