Summary

Sponge holder for kitchen counter. Has small legs to allow for excess water to drip out.
Heavily inspired by this design: https://www.thingiverse.com/thing:1036484

This design is fully parametric! Open the .FCStd file in FreeCAD and edit the values in the spreadsheet to change the parametric properties.
FreeCAD does have some gotchas, and I am no expert - editing the parameters may require some finagling and/or knowledge of the software.