YESTERDAY I PICKED UP THE PEGHEAD PLATES FROM PERK PERKINS at Northpole Products. I took him this beautiful spalted maple a few days ago and he cuts them out and incises the g the dark color you see is the burn mark from the laser that cuts in about a 16th of an inch. I will insert a wooden g into each space and sand it down smooth. I have both ebony and rosewood gs and will match the color to the uke. If you want any laser work done google Perk at Northpole Products. He really knows what he is doing.