Summary

Naruto Soap Mold
Print in Ninjaflex for easy mold removal.

Inkscape for detail (boolean cutout)
Easel to create offset svg sillouette.
Inscape to create outline svg path used for walls.
Tinkercad imported svgs, aligned, grouped.

Crazy there were no errors when dropped into prusa slicer. If I would have done this in Blender... well we would be fixing this for hours.