This is designed to look like an unassuming planter, with a twist off top exposing a small dry box in the bottom which you can store a key or other small item. There are working drainage holes in the planter that go around the compartment where the key is stored.

The model in the pictures is printed at 65% which is good for small house plants and orchids. I have also printed this at 150% size which is large enough to plant small trees in (thought the full print uses over 2KG of filament at that size).