I see that I'm not the only one who exhibits the Department of
Redundancy Department Syndrome. :~)
A couple of thoughts come to mind.
1. Look under your fingertips. Exorcise the keycaps from
an old keyboard? Mine are about 5/32" height. Carve out a
circle (1/4"?) containing the letter and inset it into your button.
The black letter goes deep into the keycap on decent keybds
and you should be able to sand/file the cap flat or domed for
a better feel.
2. Get one of the cheap lettering die sets from Horrible Freight.
I think I've seen these as small as 1/8". Heat up the appropriate
letter with a torch and burn the indentation into your wood.
Fill with contrasting whatever.
Remember - you did say "Any old off-the-wall idea".
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