I've had this idea that's similar to this... The idea is to use a flat stone and carve in designs - like maybe grape vines or something - then paint the designs gold, so they stand out, just like your piece does. But I'm not artistic in the slightest... Or I haven't been so far. Where would I get stone suitable for that? What tool do you use to carve it? I'm imagining pieces that go the whole length from floor to ceiling, although I'd start small.