If you mean “see the inside workings of the drive” (eg. platters, heads, moving parts, etc), you may be in for a shock as to how precise and precious the inside mechanisms are. The rigidity of the drive case and particulars of it’s construction are built for a reason.
If you mean colourful boxes to contain the drive in, then that sounds cool! (some LED undercarriage lighting, pimp-my-ride style, could work?).
See The Engineer Guy - http://www.engineerguy.com/videos/video-harddrive.htm and his info on the humble hard-drive for some more details.
