Kong is king among dog toys For 30 years, manufacturer has given canines something lasting to chew on

If you think Kong is the last name of a movie gorilla, you don't have a dog. For those of us with hyperactive dogs and puppies, a Kong is a lifesaver. The hard plastic toy, which comes in a variety of shapes, colors and sizes, allows a dog owner to stuff goodies into the toy to keep a dog busy for hours. Few dogs will refuse them.

But it's not always easy to come up with new things to jam into the Kong to keep a dog's attention. For example, my dog has learned that two goodies jammed inside the Kong can be dislodged if she picks up the Kong and throws it down enough times. There is…