Barbie in A Mermaid Tale 2. It is used to see its owner's memories. Queen Calissa has a see shell, and it is very special to her. She uses it to show Merliah her upcoming Changing of the Tides Ceremony.
- On the official website, the see shell is named sea shell in the link but named See Shell in the title, as shown in the game "Secrets of the See Shell".