Not really contest worthy because I don’t need a design. My hobby is tinkering with acoustic instruments. About a dozen times a year I am called on to replace a torn calf skin head on a vintage banjo. One of my first projects, after the greyscale capability is functional, is to lightly burn a design on the banjo head itself. Personalization for those that are interested. This will require a lot of experimentation to not affect the integrity of the material. The design is not so important at this point as the process itself. After that, the ability to replace missing inlays in older instruments. Very tedious to do by hand. My closest friend is the foreman at a commercial high end veneer company. An almost unlimited supply of exotic veneer scrap and lots of ideas.