re: Looking for a Playbook Wristband for my catcher to wear for baseball signals...

It depends on how many pitches. We don't allow breaking balls yet so we only have two pitches.

I do this using two hands.

Odd is change up
Even is fast ball.

2 fingers on each hand = 4 = fast ball
0 finger on one hand and two on another = 2 = fast ball
0 fingers on one hand and 3 on the other = 3 = change
1 finger on one hand and 4 on the other = 5 = change

That way the other coach can never tell if I'm using both hands, the right or the left. It virtually impossible to track because it looks like it's always changing.