With most of my game pieces, I do a warm zenithal undercoating. With these critters, it's no different.
Currently playing in a campaign where my warband can pretty reliably labour to craft arms and armor, so I am preparing pieces for when that assembly line starts rolling.
These are more or less warband agnostic, but for them I will keep to a certain number of colors so that they maintain a broad adhesion when together on the table.