Kind of a very specific problem, but my scout class Dune Runner figure broke one of the shoulders, so I desgined a replacement for it, and I think it might be useful for others.

The included file is for the left shoulder, so you just need to mirror it on your slicer to get thee right shoulder.

To attach it to figure I replaced the pin with a 2mm screw, which I also added a picture showing it.

And it does replace the original piece without affecting the transformation and vehicle mode, as you can see in one of the pictures

3D printing settings Printed with a stock Ender 3 Filament: ABS Layer height: 0.08mm Temperature: 245ºC

I also added a picture of the orientation I printed it in to have the maximum strength.