A simple two-part vertical paint brush holder. The idea is that while painting, with the brush stored vertically, the paint won't creep into the metal ferrule and ruin the brush.
Printed with a .6 nozzle at .15 layer height. I used PET for the clips. ABS would be good too. Something springy.
Print as shown in the render. I used 15% infill but you may want 100% on the clip part.
Superglue the clips to the stand and you're good to go.
UPDATE: 2023-11-11
Added two holder options; a small brush only and a large brush only.
The author marked this model as their own original creation.