Is it strange that I felt lucky when I had something break that gave me this opportunity again? Yes, it's strange. But at least I didn't break it intentionally ;)
The Problem (the broken thing)
I have an older model Drone (DJI Phantom 2) which has an older GoPro Hero 3+ connected to it using a Zenmuse gimbal on the underside of the aircraft. The GoPro is held to the gimbal with a hard plastic strap. That hard plastic strap broke.
I measured the inside spacing of the plastic strap and the thickness of the plastic in both dimensions. It was pretty simple to design a solution here.
For the ends where the screw receptacles would go, I created a small 7mm x 7mm x 7mm block and then tweaked one edge to make a slightly angled side as you can see in the image. This was an almost exact replica of the original strap design. I duplicated that block for the other side.
I combined those parts so that I had one part for the whole strap.
Having the metal screw receptacles from the original part made this really easy. If I didn't have those, I might have just left a tiny hole in the plastic ends and hope the screws would hold on to the plastic, but I'm not confident that would work for very long.
If you plan on printing this part, be sure to get a hold of screw receptacles, or modify the model to have a different connection design.
You can find the GoPro Hero 3+ Gimbal Strap on my Thingiverse page.