This is the first geometric design I made for my plants. It has an internal chamber for drainage.

If you want to see the model in Augmented Reality using your phone you can click on this link from your android or iPhone: https://link.vusar.co/Z9N481pOF2 (has to be opened by phone)
The Vusar app is great for viewing STL and STEP files at a true scale before you print it.