Jolly Egg Yellow 12" | Hard PlasticJolly Egg Yellow 12" Hard Plastic Question: Is there a dog toy that exists that is not only super durable and strong, but also is actually fun to play with? Answer: Yes The Jolly Egg. Designed for constant, erratic motion, the Jolly Egg has a fun oval shape that dogs love to chase. They can never quite get a grip on the Egg, but they love to try! Since the toy constantly escapes your dog, it gives your dog a safe, fun outlet for their prey instinct.