Create template and trace around it on 6 pieces of fabric scraps. Be sure to lay the fabric on the grain and cut out pieces.
Pin the first 2 pieces together and then pin a third side right away to this piece. Sew the first side with a 7mm or 1/4” margin, and then sew the second side.
Now repeat steps again for the 2nd half using the same color order. Once both halves are finished, pin one side of one half to one side of the other half. Make sure that the color order is correct. Sew these halves together.
Now pin the last side to the other side. Sew both sides together but leave an opening in the center for turning.
Turn your ball and stuff as desired. Finally, hand sew the opening closed.