A 2 parts unique planter:
A base which holds a square wet sponge and a beautiful mathematically generated complex mesh which simulates a natural reaction of 2 chemicals.
First cut a 80x80x10mm square sponge, put it inside the square cavity in the base - wet it then put on it few of your favorite Plant Seeds.
Put the Reaction Mesh part on top the base and let nature do its course.
When the seeds starts to grow they will engulf the Reaction mesh thru the complex mesh in&out.
3D Print both parts with your favorite material OR 3d print them using your personal 3D Printer with white ABS/PLA