v2 : the form is slightly smaller and less boring than v1, and I fixed the pocket for the brush (the v1 cone was ejecting the brush).
v2 is below on the picture :
STEP and FreeCAD files available
Easy build, no special constraint or setting. Despite the large base, brim may be useful to avoid angle curling, at least “Mouse ear”.
The author marked this model as their own original creation.