1. With H hook and light green, start with magic loop of 6sts (or preferred method for starting a circle of 6sts), join and pull closed.
2. Ch 2, 2 hdc in each stitch around (12sts).
3. Ch 2, 2dc in each of first 3 sts, 2hdc in each of next 3 sts, 2dc in each of next 3 sts, 2hdc in each of next 3 sts. Sl st to join. Finish off, leaving a long tail for attaching to hat.