I have found the ping pong balls as well as the practice golf balls that are the size of ping pong balls at THE DOLLAR TREE,the pack comes with 12 balls and they are only a dollar,my ferrets like these better cause of the wiffle ball style they can grab and hide in my shoes,(lol) I will be glad to buy up some and ship them out for cost nothing more, that means price of balls and shipping, LET ME KNOW 205-585-4171 James Barr (Zilla's Fuzzy Friends ) [Posted in FML issue 5333]