Need a quick birthday gift for your dog? Buy him Happy Birthday Tuff Balls®. Happy Birthday Tuff Balls are flavored with fresh vanilla and smell just like a birthday cake. Happy Birthday Tuff Balls, just like the name says, use our industry leading Tuff Ball®. Tuff Balls are made with twice the rubber for added durability and better bounce. Comes in a three pack of blue, pink, and orange colored balls.