Kelbourne Woolens Effortless Collection Patterns - Clearview Cowl is a similar pattern: scarf garment, for unisex, and dk (21-24 sts/4 in) yarn gauge. You may also like Plymouth Women's Accessory Patterns - 2738 Cowls, which is another similar pattern: 20 (5 sts. / inch) finished gauge, scarf garment, and dk (21-24 sts/4 in) yarn gauge.
You may enjoy taking a look at the Shibui Staccato & Silk Cloud Parabola, Shibui Staccato Hypotenuse, and Shibui Baby Alpaca DK Rectangle kits all using Shibui Geometry Patterns.
Hopefully our suggested yarn options for Trapezoid can help you come up with your next exciting new project idea!