Leader LPS-152 square hole Grommet - Where to find?

[zitt]

All,
I have a Leader LPS-152 linear power supply that I successfully resurrected from someone else's repair job. Now that's completely repaired; I wanted to do the last bit of mechanical repair. Basically; the square hole grommet around the power button has cracked and failed... which leads to an unfinished look.

I've recreated the grommet in 3D CAD and uploaded it to Shapeways for printing... but before I do; I wanted to find out if anyone knows of a source for the original grommet?
https://www.shapeways.com/product/GY2FALG6K/leader-lps-152-hole-grommet

I haven't seen these for quiet some time... but then again; I don't really know exactly what this finishing part is called so unsure what to search for on google.

Any ideas?