This is an updated model of my tic tac toe design: https://www.thingiverse.com/thing:2980796.
This version has a nonattachable lid:
This new one is designed to have a lid that uses a single rubber band to stay attached, so the base has been revised. It's perfect for traveling or easy storage!
STL's attached are in mm, and tolerances for 3d printing are already included (so there's no need to scale up/down).
Make sure to like and post a make!
Thanks to Allen9062 and pm1124 for posting the make and the pictures!