I redesigned the toothbrush holder I made a while ago because I got a new electric toothbrush with a new charging dock. While I was working on it I also decided to make a version with space for 4 bruch heads.
Cut the file with the number of slots you want out of 3mm material (I recommend acrylic) and glue the pieces together as you can see it in the CAD screenshots.
laser_2.dxf |
laser_4.dxf |