03-19-2012, 09:03 PM
I must chime in and mention I had used the water-filled-punch-ball with success but I as always worried it would explode. So I switched to inflatable beach balls. I never thought of filling them up with water just liked the ease of inflating / deflating. I use generic cheap inflatable balls from any party supply store. You folks have convinced to me try using water in them. It makes since so why not?