I have recently built a Rose Engine lathe as detailed in this page and one of the options that I built into it was the ability to use the laser engraving attachment from my 3D printer. I mounted the laser on the bracket that normally holds the Dremel cutter with the magnets that come with the laser attachment.
I cut a small piece of end grain Sycamore and mounted this on the rose engine. Using one of the rosettes I burnt this pattern into the wood. The centre flower is burnt with the laser one side of centre along with the next outer shape. The outer two shapes were burnt using the laser the other side of centre.