A small neck mount for action cameras to record POV footage.
It's bent towards the back to make it more comfortable to wear and uses the split GoPro mount to hold it together.
From my testing any material should be fine since it's thin enough to be bendy.
Slicer note: Setting the top surface to concentric makes the printing process a lot smoother. A small brim can be useful but isn't necessary.
The author marked this model as their own original creation.