I’ve located a great little crochet pattern tutorial for a Mermaid Outfit which includes the tail, sea shell top and star fish head band.
The tutorial is taught by Fuad Azmat on YouTube. She does a great job of showing you what to do to make your own. You can find many more great ideas and inspirational tutorials on her YouTube Channel.
She has clear instructions and is easy to follow along. Definitely a worthwhile visit to check it out. There are no written instructions. Just grab a hook and follow along.