Our sister-site Engadget tracked down
this bicycle-style iPod lock from Japan's Elecom
. For about $40, the lock offers a multi-digit combination and a reinforced cable. It's clearly meant for people who want to enjoy their iPod in places that suffer from theft-by-taking such as the gym (attach it to the handles of your elliptical trainer) or the office (attach it to the heavier furniture in your cubicle). The locks are built for 5G video iPods and 1G and 2G nanos. The Elecom site is all in Japanese and it's unclear (even if you can navigate the page) whether they process overseas orders.