I use Jacquard neopaque and Jacquard lumiere paints. They are the best paints I've ever found for this sort of stuff. They go on so smooth (except for white but white is always way thicker for every brand of paint). You can also use them on fabric and a lot of other materials!
I use Jacquard neopaque and Jacquard lumiere paints. They are the best paints I've ever found for th