Sponge holder

I recomment adding helper discs in the slicer (or a brim) since it is pretty tall and has only a small footprint.

The FreeCAD model is not fully parametrical, the position and number of holes is selected to the current dimensions.

10.03.2024, Update: thanks for everybody posting makes of the model. It means a lot to me since its the very first thing I designed on my own. I uploaded some more variants of the holes, mostly in an attempt to get better at grids in FreeCAD. The files are very much imperfect, since the parameters can't be adapted easily.