For those of you who decided to put the PETG in the ears for lights, how did you cut the thick plastic into a perfect circle? Also, what method did you use to attach the ears? I'm not sure how to cut the thick PETG, but I'm planning on using epoxy to simply glue the ear puck ends to the PETG circle then that on to the base ear piece.

I saw that volpin epoxyed a nut onto the outer ear piece then attached it with a screw. I can't do this as my ear lights do not have a hole in the center.