How to crochet a unicorn horn! I made a costume version for myself, and a small doll-sized version for my unicorn amigurumi doll. You can find the pattern for the amigurumi pony I used to make my unicorn in my pattern store.
This is the pattern for the costume version. The doll version is just the tip of the costume version. For that one, start with a chain of 8 instead of 24, and then only do the steps highlighted in blue on the pattern page. Video tutorial is available on my youtube channel, which you can find either on the pattern page or here: https://youtube.com/c/faerierings