What a cute idea, a beanie with a bun hole! Free Crochet Pattern for the Chelsea Beehive Messy Bun Hat from Made with a Twist! It even comes with an optional upgrade to make it with stripes and a bow!
This is a free pattern for a crochet sprig stitch bun beanie. After many tweaks and trials, I'm excited to share this hat pattern. I'd rate this advanced beginner as there are no rounds to join and it ends up easily enough with a hair tie.