Cut your fabric and felt pieces to the size you desire. Just make sure you have enough room for a tic-tac-toe board. When cutting out your pieces be sure to make your back (felt) piece about 3 inches taller, this piece will fold down to close the pocket. You don't have to use felt, you can use fabric for both pieces or even felt for both pieces, I just liked the look and feel of the two different pieces.
Take the top edge of your fabric piece of fold over a 1/4 inch and sew.
Using fabric glue, glue your Velcro pieces in place. You may also sew your Velcro to your fabric pieces for extra strength.
Place your back fabric/felt piece, Velcro side facing down, on the table. Next place your fabric piece, Velcro side facing down, on top of your felt piece.
Sew all three sides.
Turn your pocket piece right side out and press with a hot iron if needed.
Sew or glue your fabric pieces down in the classic tic-tac-toe design. I chose to use ribbon as it won't fray as easily as fabric would but fabric would work fine too!
Your kids are ready to play! We used little buttons for our tic-tac-toe markers but there are others things you can use as well! My kids love the idea of painting some small rocks for their game.