Dull Roar Patterns - Rooty and Swans Island Patterns - Open Book Hat are both similar patterns: 20 (5 sts. / inch) finished gauge, hats and more garment, for women, and worsted (19-20 sts/4 in) yarn gauge.
You may enjoy taking a look at the Knitting Pure and Simple #223 Basic Hat & Mitten Set, and Knitting Pure and Simple #253 Basic Hat & Mitten Set kits all using Knitting Pure and Simple Hat and Mitten Patterns.
Hopefully our suggested yarn options for 297 Bulky Hat and Mitten Set can help you come up with your next exciting new project idea!
If you like Hat and Mitten Patterns, then you may be interested in the different ways we've used them. Visit our Gift, Gifts to Knit, Hat, and Organic corners to see some ideas.