ZippyPaws ZippyTuff Waggle Ball - Dog Ball That Makes a Funny Noise When Rolled for Indoor and Outdoor Engaging and Interactive Play, Durable and Tough Dog Toy, Turquoise : Amazon.co.uk: Pet Supplies
Wobble Wag Giggle Ball - YouTube
Wobble Wag Giggle Ball Dog Doggy Indoor Outdoor Pet Toy Rolling with Funny Sound | eBay