Swans Island Patterns - Timberline Hat and Grace Akhrem Patterns - Nicole 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 Malabrigo Rios/Madelinetosh Tosh Merino Light Howlcat! Cowl (adults), and Noro Kureyon Phoncible Hat kits all using Dull Roar Patterns.
Hopefully our suggested yarn options for Zam Hat can help you come up with your next exciting new project idea!