I grow the avocado with an avocado boat (e.g. https://www.printables.com/model/148579-vase-mode-avocado-boat) until the root is long enough. Then I put it in this lid (for the rest of its live). Water is changed every two weeks. To do this, you lift off the lid with the plant and afterwards put it back on again.
To further embellish the can, you can print a cover, which you can then attach to the can with super glue. The 3mf project is an example of this: simply print two of my cover models without a top and bottom layer and with a nice infill pattern.
The author marked this model as their own original creation.