I printed at 15% in PLA, of course you could use black filament :)

Needed a way to fit a 40/60mm fan into my box as it overheats, along with a decent size heatsink instead of the lump of metal it ships with.

It fits snugly into the X96Q top shell, however is not a snap fit so will probably need some adhesive, or just leave it sat on top for easy access.

The feet are friction fit.

No supports needed, but probably a raft for the feet.