Magic the Gathering Commander Box

thingiverse

This case has a satisfyingly snug internal fit for a sleeved commander deck. The clearance on top is as close as I can get it without touching the cards, and the x/y dimensions are as narrow as I can get without it being a pain to actually get the deck back inside. While the thumbnail doesn't look like it includes the hexagonal cutaways, they're just on the other side.