5. Bird Bell Ball
If your senior dog loves to fetch but has trouble because of poor eyesight, get him the Bird Ball. When thrown, the Bird Bell, true to its name, whistles like a bird. There are 12 wind-powered whistles that chirp when the ball is thrown, which the dog can follow as it flies away. The ball is made of durable, flexible non-toxic materials. Purchasing this toy benefits the United Dogs of America Foundation.