I tried the sharpie method and wasn't happy with the results...The color wasn't consistent. I also tried glass paint from the arts and craft store,,,just as good.
I finally settled on red tape, the kind that you use for temp repairs on tail light lenses. Just lay in on and trim it off with a sharp razor blade. The tape is uniform, transparent, and it looks good.
You might want to try and leave the white "frosted" paint that is on the underside of the needles. It might help transfer some of the light. I sanded and polished mine.
I finally settled on red tape, the kind that you use for temp repairs on tail light lenses. Just lay in on and trim it off with a sharp razor blade. The tape is uniform, transparent, and it looks good.
You might want to try and leave the white "frosted" paint that is on the underside of the needles. It might help transfer some of the light. I sanded and polished mine.