I have an idea - don't know whether it will work or not. Take aluminum foil, remove the plastic front bezel of the Zip drive, coat the face of the bezel with a thin layer of some type of slow-drying adhesive (needs to work with both plastic and metal), then press the foil (satin side out) to the face of the bezel with slow rubbing with a Q-Tip (kind of like gold leafing). Trim the excess alum. foil with a sharp Xacto knife... Paint the disk flap with your favorite shade of black Testor's model paint.
. Or you can always just start with silver Testor's model paint.
.bh.