I don't know if its the same look all over the world - but here - just as a curiousity - a company has made napkins with sea-charts on them, and sell those to restaurants near the respective seas ... and doing fine also I believe, I've seen them several places in my countries (Denmark and Sweden) - perhaps that was a good little side-business. Or perhaps you could sell the idea of doing that to the artist, so he might earn some cash there too, and lower your price