Taught to me by my grandmother, who would have learned it growing up north of Boston in the 1930's:

1,2,3 O'Leary
4,5,6 O'Leary
7,8,9 O'Leary
10 O'Leary, I made it

Then her version went on to "1,2,3 a basket" (make a hoop with your arms, have the ball bounce through) and "1,2,3 a puppy dog" (get down on one knee, holding your hands up like dog's ears, and up again in time with the ball).

THEN, for a bigger challenge, you moved on to doubles, starting with "1,2,3 O'Leary, O'Leary," where you passed both legs over the ball (one at a time of course!).

Anyone else do something like this, or was it just my grandmother's creative side?