This is a pretty easy project and makes a nice holiday gift. This version was made from a scrap piece of hardwood and a 5/8" dowel. As an extra touch, I added a compartment inside the board to store the pieces. The compartment panel is held on with magnets for a clean look.
I've include the STL files for printing. You will need to provide the washers. The magnets can be purchased from Amazon or Ebay: http://amzn.to/2Dq5E7l
Build Instructions: https://www.instructables.com/id/Wood-Tic-Tac-Toe-Board/