Tic-Tac-Toe Board.

thingiverse

It's a fun little set to play with. It's also perfect for quarantine or playing with family. It can be scaled up or down to fit your needs. It took me about 1.5 hours to print all the pieces using the automatic speed settings in PrusaSlicer/Slic3r Prusa Edition. Tic-Tac-Toe Board is the file with the Xs, Os and board on the same file for printing the set in one colour. (Unless you have a dual colour/material printer). The files with "Separate" at the end have the Xs and Os in one file and the Board in another to print the set with separate colours or materials on a single material/colour printer.