ZSPEC "Clock Delete" Plates are Anodized Black and are designed to fit the: '90-99 Z32 300zx (both LHD & RHD).
Here's a simple idea an enthusiast brought to us and we ran with it.
The plates are anodized black and available in these styles:
Fairlady Z laser-engraved
TWIN TURBO laser-engraved
Japanese-Style "Fairlady" Z
Anodized black aluminum hole-cover plate
Flat Washers and Silicone Bushings - you reuse the OEM screws