What's more low-poly than a polyhedron?
This is a set of dodecahedral planters I made to look like tabletop game dice.
Includes 3 designs (open, half-open and semi-closed) with 2 variations each (normal and thin-walled), so you can scale these to most sizes without wasting too much filament, or having walls that are too thin.
I printed mine in galaxy filament to add some extra sparkle to the dice.
If you have a larger nozzle, now would be a great time to use it. Make sure you enable the new variable wall thickness/arachne setting.
No supports needed, though I recommend lower layer heights for better aesthetics, easier overhangs and better cooling, especially if you use a larger nozzle.
Note: Yes, the numbers on the open design would be upside-down on a real dice, but that would look a bit weird on that specific model. Print the half-open or semi-closed versions if you want 100% accuracy and correctness.