We're usually more concerned with what's inside your iPod rather than what covers it, but we're willing to make an exception because dang look at this thing. TinkerBrick Lego Compatible Case fits the bill, a molded shell for your iPod Touch that works with all Lego pieces.
The video above shows solutions for the practical builder, like docks and grips – but also much more elaborate creations like guitars and dump trucks. TinkerBrick also made an instructional video on how to build your own steadycam out of Legos. If you're feeling up to the task, you can grab your own case from TinkerBrick for $33, in yellow, black, red or white.