Roof bumper / skid protection for the MXJ 16209 body. Can be printed without supports if you print the top parts laying down on the side. I printed with PETG and they already held quite a few flips and tumblers.

I made one version where you need screws with a cutting thread, and now screw will be visible from the outside. The second version has through holes which should be more stable - choose what you like.