A small flowerpot with drainage holes. I also added a second version that works well for larger plants, and I've added versions with a lower polycount as well.
All files should be quite easy to print, except for files Flowerpot_inside_high and Flowerpot_inside_low. I would recommend to print those upside-down. It will make printing those feet a lot easier, but needs a lot more support material.
Feel free to scale the large pot up or down, it should work well at almost any size. I have not printed it at a large scale yet so if you do, please tell me how it works.
The tolerances on the seperated pot are 0.3mm.