Laser cut record album

One of the first things I wanted to try my hand at on the laser cutter was this amazing Instructable by Amanda Ghassaei: http://www.instructables.com/id/Laser-Cut-Record/?ALLSTEPS
Has anyone else tried this?
I did cut a test on plywood and, though it sounded pretty terrible, it did play! Probably a matter of tweaking one of a gazillion different settings…