I was about to print it, but then I felt like something was missing. I was looking at the mesh cup on my desk that was getting replaced, then it clicked. Holes! Well… hexagons! I added hexagons to all outer sides, just not the dividers. No supports needed!
v2.1 - I was looking at the model after I published it and was like hmm pencils might poke out from the bottom hexagon tips. So I went back in and chopped off 3mm from bottom hexagons. Now there's a 3mm tall wall at the bottom
*Made in TinkerCad
The author remixed this model.