I'm not much of a ring person, my original wedding ring is pretty messed up, scratches, etc. So I decided to make one myself. The words say "I belong to my wife" or something completely different, trusting a web translator. I wear it everyday, now I can make several in different colors.

just measure your ring finger, and some to the to the i.d. so you can sand it to a good fit.

This one I used a white epoxy filler, after it dried i painted it with glow in the dark paint. Then sanded to show the band and letters. Turned out well, i wear it all the time. I like how it kind of looks like a rocky tone to it. plus it glows in the dark which is sweet!.

UPDATE: I did a wood filament print. Turned out real well. head 240C, bed (glass) 90C, 20 mps 1.5 layer. I did a bit of sanding and weathering, never done weathering before, but i think it turned out pretty good, see pics.