This is the pattern for the baby ball that is famous in my family. My friend’s daughter calls it the Casey-ball.
However, a simple pattern can be created for any size ball. I have done this demonstration with a nine-inch cake pan, but keep in mind that will make a ball with a nine-inch diameter… about the size of a basketball. I think that is a little large for a baby to easily manipulate. Ideally the ball would be between about 5 and 7 inches. I think my grandmother might have used the lid of a Cool Whip container as a template sometimes.
Begin by tracing and cutting out a circle.
Fold and cut the circle in fourths. Alternatively, you could cut the circle into fourths using a mat to divide the circle equally.
For the top pattern piece, draw or imagine a line from point to point of one of the quarter circles. Fold along this line.
Cut out the pointed oval/eye shape. You may want to use this as a template to create a pattern form that lies flat.