Here is a speaker diffuser for Stern Pinballs Uncanny X-men. I put transparent on the main body and then black and white for the x-men logo. Using white for the body diffuses it too much which is also why its only 1mm thick. It looked too muted at 2MM and it also saves time an filament. This is for 5" speakers.

Used the blank stern diffuser and add a X-Men logo in the middle.