Designed a tiny planter for my mini succulents. Drainage holes in bottom. Very inexpensive to make, could make great seed starter pots or propagating pots.
Print with 3 walls, 10-15% infill, .2 mm layer height.
(I printed mine with .24, worked out well also)
*The succulents are in jars to protect them from some wild kittens, temporarily. Not advised for succulent keeping.