I was wanting to make a sign, but I want to laminate a piece of metal on top of a board before I carve the sign. That way the top surface would look metal and the wood would be visible in the carving. Has anyone done this type of carve yet? If so, could you tell me what metal to use and what bit to use. I was thinking of using aluminum flashing as the thin metal venire. What’s your thoughts on that and any ideas where I could get a 30” square of flashing?