This is a sleeve for the Apple AirPods 3rd generation.
I printed them in Ninjaflex 85A (shore hardness). Other flex materials might work aswell.
I also added modifier to generate a cutout for the charching LED and / or a engraving of your case.
Simply import the desired modifier in PrusaSlice (as a modifier) to the bottom piece and set infill and perimeters to zero. In case you engraving is larger then mine just scale the modifier for your needs.
The author hasn't provided the model origin yet.