Dilly loves String

Cubby has come up with a pet name for his little brother.
And "Dilly" has grown a serious crush on a stuffed Sting Ray! Or String Ray. He sleeps with it and was very, very concerned that it missed his mom.
With great urgency, we visited the aquarium to find "Baby String's" mom. Are you following this?
Here is Baby String.

Mama was waiting in the gift shop. We grabbed her and introduced the pair to the sharks. 

 And crushed a penny.

Everyone is happy!