Knitterella Patterns Knitterella Patterns - Ripple Effect Fingerless Gloves is a similar pattern: gloves and mittens and armwear garment and heavy worsted/aran (16-18 sts/4 in) yarn gauge. You may also like Plymouth Sweater & Pullover Patterns - 2879 Women's Shawl Collared Cardigan, which is another similar pattern: 14 (3.5 sts. / inch) finished gauge and heavy worsted/aran (16-18 sts/4 in) yarn gauge.
You may enjoy taking a look at the Blue Sky Alpacas Brushed Suri/Alpaca Silk Silk & Suri Scarf, Blue Sky Alpacas Techno La Luna Cowl, and Blue Sky Alpacas Suri Merino Pangolin Cowl kits all using Blue Sky Alpacas Traveler's Series Patterns.
Hopefully our suggested yarn options for Tri Button Cowl can help you come up with your next exciting new project idea!