In case you missed it, Big Worm is a free crochet hat pattern I just posted a few days ago.
Please note the pattern for Big Worm as written is for an oversized adult size hat. My son was the only available model, but this is my hat. I’ve been wearing it all weekend and I love it! For a smaller circumference, just start with a foundation row with less stitches. For a less slouchy hat, repeat rounds 2-3 less times.