Tic Tac Toe in a box
Easy to print without supports
Print one base and lid, and 5x Cross 4x Nought
OR print four of each and one each of the centre cross and centre nought pieces that fit together to make a piece that is a nought one way up and a cross the other :)
Make sure you have 'print thin line' checked when printing the box
Use some 1.75mm filament for the hinges