I needed some plant pot which has air holes and I had printed silica gel containers right before. So many thanks to this project: https://www.printables.com/model/476778-silica-gel-container

I got what I needed but there is still one layer left above the bottom holes, not sure if the layer still exists. I changed the bottom holes to be small and think I fixed it but i got the two pots I needed and did not print it again so please check before you print.

Since Vase mode is not an option to have the project be strong enough - it acutally is but I don't suggest it for bigger pots - I adapted it to my needs.

The attached open scad file can be changed to one's need and sizes etc. hope this helps at least one person here :)