I've always preferred my belt buckles covered in rhinestones, eagles and American flags from various historical eras/political affiliations. But I could tolerate the existence of a circuit board MP3 player belt buckle.
A DIY project consisting of an MP3 decoder, lithium ion battery, accelerometer (for complete gyration response) and some other various circuits and switches, the only components it might be missing are speakers and a decent gold plated mini horseshoe (a series of mistakes you can unmake during your own construction process). Now just to find a decent pair of blinky LED boots to ensure complete cowboy ostracism. [sparkfun via technabob]