DJI RC Strap Plate. Screw this to the bottom of the controller using M4x12 countersunk screws. I've attached Peak Design anchor links so I can use one of their camera straps.
Best printed at 100% infill to ensure the eyelets have full strength.
Didn't leave a hole for the SD card and other USB-C port because I don't see me using them very often.
The author marked this model as their own original creation.