Just like rc quads, GA airplanes can also cause vibrations that mess up videos. Needed an anti vibration for my GoPro camera that's hanging from above in the cessna I fly, but couldn't find something so designed this. I used a Damper set from amazon (link also below), but probably other types of small dampers will do as well.

Make sure you also test it before using it as I didn't thoroughly tested it for structural integrity in extreme conditions. I also used 100% infill and 0.1mm layer to make sure it is as solid as possible.

Dampers: https://www.amazon.com/gp/product/B071VMZZVD/ref=as_li_tl?ie=UTF8&tag=zroiy-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B071VMZZVD&linkId=a8daf8e81dda7e351d71929deede8aab