I will "kind" of miss seeing the CMs "bouncing" the Balls to Guests as they walked by and I am a little "sentimental" about them because they have been there since my first trip in 2003 IIRC,but I have to admit,I always found their prescence a little "odd" and I don't ever recall seeing one being sold(although I am sure many must have been).
http://wdwmagic.com/Attractions/Epc...onger-for-sale-in-any-of-the-Disney-parks.htm

http://wdwmagic.com/Attractions/Epc...onger-for-sale-in-any-of-the-Disney-parks.htm