@aarbrk Alternatively, you might be able to cut a CD sticker shaped piece out of transparent sticky-coated vinyl sheet and apply it with a standard CD sticker applying tool. Again, the balance thing is kind of important, so I'd cut it with a CNC plotter-cutter, not by hand. (But in a pinch, a combination of a drawing compass and a scalpel blade would probably get the job done.) A laser cutter is probably not a good tool for cutting an optically transparent vinyl sheet, and attempting to use it for this may be dangerous.