My dad's patio door stopper holder broke and he couldn't find a replacement part, so I designed one and made a few iterations until it fit perfectly.

The part is made so that a rubber door stopper can slide in the front part, and the back part can be screwed in place where the old one was.

The one in the photos has been in use for 2 years and doesn't show any sign of damage/cracking.

Print settings:100% infill for max rigidity as this part will eventually have to absorb slight impacts.