Just a little test box I threw together in Fusion 360. Takes about a half hour to print at 100% speed with regular PLA; if you're using high-speed PLA, go ahead and bump it up to sport mode; you should cut another 5-6 minutes off the print! And you might even find a use for this little box; that's why I added the separators - just in case. :)

As always, STEP, STL, and F3D files included.