Petsmart has a great selection of toys designed especially for the babies. Even found one that I could put in the freezer so it would be cold. Just be prepared to have your heart break if yours whines pitifully like my Gracie did.
She walked around the house with her Ducky in her mouth just whining for hours. It broke my heart to know she was hurting and she didn't understanding why. But I knew is would pass and she was extra cuddly during that time.