I was a bit fed up with the exposed battery on the Eachine Falcon 120, which made landings (for me at least) a bit tricky. I created some little light weight legs which can be stuck below the motors on each arm. I've used velcro tape for this which is flexible and won't transfer too much shock to the CF arms in a had impact.

I printed it with only 10% infill, but gave it 4 perimeter shells.