I really liked the look with the tooth on top of the original thing, but I wanted just one big room inside and a bit of a texture on the outside. This is the result.
EDIT 19.09.2022: Added top parts with a more loose tolerance on thread
file "tooth-box-top-part_tree_loose_02.stl" with a little more tolerance and
file "tooth-box-top-part_tree_loose_04.stl" with even more tolerance.
I have printed this with 0.15mm layer height with Extrudr PLA.
The author remixed this model.