Free Crochet Pattern for a Hair Scrunchie. This is a lovely single ruffle, Crochet Hair Scrunchie PATTERN (FREE ) that is Super Quick and Easy to make. I love making these as they are so quick and are great sellers at craft fairs. My niece loves wearing many colors and designs on her wrists. Which seems to be the fashion just now You could use any sized hook and any thickness of yarn. to make these. I have written down what I used.