I made a decorative shield for the synthesizer control panel. The shield contains three layers - a matte lamination film on top, a self-adhesive inkjet film under it, and a white self-adhesive film under it.

I did not remove the protective paper from the white film.
Thus, the shield is self-adhesive!
It will be glued to 6mm plexiglass of the same size, this is necessary for backlighting. The PCB of the controller will be the same size and will have backlight LEDs among other things.
Another shield I'm making for the mixer, it's basically the same approach.