Make some of these easy crochet hat patterns for worsted weight yarn. There are a lot of great gauge 4 yarns, turn some into stylish hats.
35+ Free Crochet Hat Patterns for Adults - Dabbles & Babbles
42 Free Patterns for Crochet Hats and Beanies - Easy Crochet Patterns
30 Free Crochet Hat Patterns Using Worsted Weight Yarn
Crochet Hat Formula by Cal Patch - Creativebug
Free Pattern: All Grown Up Striped Slouch Hat
35 Free Easy Crochet Hat Patterns Worsted Yarn to Make - A More Crafty Life
35 Free Cotton Yarn Crochet Patterns (Quick + Fun) - Handy Little Me
35 Free Easy Crochet Hat Patterns Worsted Yarn to Make - A More Crafty Life
70+ Free & Easy Crochet Patterns for Beginners
How to Crochet a Hat - Ribbed Beanie for Beginners