So this is what I'm calling my "6 layers" design for the laser. It's going to be cut from 6 pieces of material (likely very heavy card) and then stacked up. This first picture shows all 6 layers from the top. The next pictures show how I constructed each layer. I started with a set of 8 circles, which I duplicated and then hit with successive "strokes" of increasing width. I then converted all strokes to paths, and then merged the paths with some squares to make each layer. I also made one extra layer with no circles for the bottom, and an extra one for the top which only has the cutout and no circles.