These doll-size mermaid tails are fun to make and little girls love transforming their favorite 18-inch doll into a mermaid. Since adventurous mermaids love to explore, I usually make these using Red Heart Super Savor or some other brand of everyday yarn. Start crocheting some today for the little dolls in your life, before holiday gift-giving gets the best of you! Comment below and share pictures of your finished mermaid tails!!