I wanted a storage bin that was actually sturdy enough to be useful. This lattice design keeps it rigid without wasting a ton of filament. It measures 186mm wide, 320mm deep, and 170mm high. 

They happen to fit three-across in a 60cm Platsa unit if you have those, but they're sized to work pretty much anywhere. It's a very straightforward print with no supports to clean up. Works well in whatever PLA or PETG you have on hand.