Another choice if their small enough but to big for the turtle wax lipstick is to remove the insert and blend them out with some fine sandpaper, wet and dry 600/800 grit, prime it with some rattle can primer, a little glazing puddy to fill, again lightly sand, prime and repaint with rattle can flat black or any other color you want. Warm the rattle can in some hot water, will flow better. All depends how far you want to go with it.