This takes about 5 minutes and 50 cents to do and it improves the look or visibility of what you do it too. I did it to the Ford logo on my key and the lock/unlock lettering on my girlfriend's keypad, but it can be done to anything that has recessed lettering.
1) Take the white crayon and rub it over the recessed lettering. As I mentioned before, I did this to the Ford logo on my key.
2) Use the paper towel to wipe down the excess wax on the surface.
3) Repeat step 1 & 2 until you like the results.
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Never would have thought to do this. I did the crayon thing. I'll raid my wires and daughters nail polish collection later for some white and do it more permanent. But, the white crayon looks good for about two minutes worth of work...
Works great on guns and mags also. I did this to my wife's .380 a couple years ago. It's lasted really well on the mags(never had to reapply) but I've had to reapply every few hundred rounds on the gun itself because of shooting and cleaning it.