Kyjen Mini Invincibles - Duck are the answer when your dog loses interest after a toy stops squeaking.
The Invincibles have a heavy duty squeaker that keeps going even after its been punctured. The double layer seams also help to keep your dog from ripping this toy apart. This size is perfect for small dogs.
Invincible? Hardly... by Matilda's Dad from Grand Rapids, MI08/14/2013
This toy was cute and even said it keeps squeaking after being punctured. I gave it to my 12 lb chihuahua border terrier mix and she ripped the whole thing apart in about an hour. It stopped squeaking after the first 30 minutes. The carnage was almost too gruesome to watch. I truly felt bad for the little duck which is now in the trash. On the bright side my dog did seem to have a GREAT time ripping the toy apart! With "invincible" in the name I would have expected more.