Since the days of the death of MFM hard drives I've been stripping dead drives of their platters and using them for wind chimes. The platters resonate with crystal clear tones when struck against each other, and I've never had one I couldn't use from notebook drives to IDE/SCSI drives.

Besides the usual nylon line and a wooden dowel or two for the upper support, you do need a few different type of screwdriver bits, since most drives use odd shaped star/torx screwheads. If you have any trouble just grab a drill and destroy the screws, at this stage who cares about what the case ends up looking like. And a final tip, you may want to spray the platters with a thin clear coat if your putting them outside.