“How did you mask off the blade runes for painting?”
Since the blade runes have a 2mm inset I was able to mask them with thin craft foam.
To do this I cut out all of the shapes (by hand with an xacto knife) at a slightly wider size. I then stuffed the foam into the recess for the runes. The pressure of the foam against the inner edge of the rune seals off the area acting as a mask.
After all the priming and painting was finished I carefully dug out the foam.
* All of the 3D elements for Frostmourne were created by Vertvixen.