[comp56]

I've done a lot of glass etching with this stuff,
here is a shelf I made that I etched the mirror....easy peasy brush on wait 10 minutes wash off.....

 

[comp56]

Add a vinyl plotter to your arsenal for a mask. Im sure there
are smaller units out there you could pick up, load in the
vinyl mask, cut it, weed it out and start etching/blasting etc.
Xacto blades can do so much by hand and could get discouraging.
Vinyl plotters can only go so small before losing detail and alot of
stuff is small. Especially for trophies.

Are there other methods for super small graphics? Probably Laser?

Glastar has a neat mini sandblast system
that I've been interested in for years.

yes that is a good idea I happen to have a large one for other reasons but comes in handy for this purpose.