The Little Mermaid

Here is the poster from The Little Mermaid Disney's Movie. It's also the topic of my first item going to appear in the shop.
"The Little Mermaid asks her grandmother whether humans can live forever if they do not drown. She is told that no, humans have an even shorter lifespan than mermaids. Mermaids live for 300 years, but when they die they turn to sea foam and cease to exist. Humans, on the other hand, have a short lifespan on earth, but they have an eternal soul that lives on in heaven even after they die. The Little Mermaid spends her days longing for the prince and for an eternal soul. At last she goes to the Sea Witch who sells her a potion that gives her legs, in exchange for her tongue; the Little Mermaid has the most intoxicating voice in the world. But drinking the potion will make her feel like a sword is being passed through her, and walking on her feet will feel like walking on knives. And she will only get a soul if the prince loves her and marries her, for then a part of his soul will flow into her. Otherwise, at dawn on the first day after he marries another woman, the Little Mermaid will die broken-hearted and turn to sea foam like other merfolk." Collected from Wikipedia