[bsdubernerd]

As I wrote before, I frequently go mostly with some gradation of grey nowdays. I keep a selection of fingernal varnish colors for finishing touches. They dry quick, cheap, are available in any shade you need in small volumes (so you can have variety over quantity). Especially the "gel" variants often require a single coat. I wonder if this could also work for shielding, just in case you're going to repeat the print :)