I wanted to add some flecks of color to these before filling in the runes, so thought I'd try the spatter technique of loading up a brush with paint and flicking the bristles.
I think it worked okay once I got the hang of it. Though, I need to keep a better hold on the brush when I do it. Eihwaz there in the top left might have gotten a little more than it bargained for thanks to me dropping the thing...
Lined! None of my brushes were sized right for the indents, so I would up just dipping a toothpick into the paint and rubbing it into the engraving. Worked pretty well!
I think the two tones of gold-ish metallics really offset the white base nicely for these. I was considering a dark wash over them, but I think the spatter plus their natural roughness is a pretty good amount of texture as is.

