A while back I decided to do a ‘mod'(I use that term lightly) to my OLED EVF on the Nex. The rest of the camera, and many of the lenses I use are black in colour, and the silver, although perfectly fine and functional, just seemed to stand out to me. For an accessory, its a pricy little piece really, but I much prefer using a VF of some form to the live view screen on the back of cameras.
Practically, it was a fairly straightforward job. Take off, take apart, spray and put back together. My first top coat (pictured below) caught some dust. I smoothed it down and applied another. From any distance other than up at my eye its a good enough finish, and in my opinion, much nicer on the all black camera!