There are a variety of types of silly balls: balls that flash lights when touched,
Titleist 913 D3 Driver, balls that make noises when rolled,
Odyssey Putter, and balls that roll in crazy directions. Some balls do more than one thing. The best part of this type of toy is that your Italian Greyhound can play with these by himself (for as long as he wants) by pushing them with his nose or rolling them with his paw.