My first circular shawl, created with the 'Pi' method popularized by Elizabeth Zimmerman. I've used traditional Shetland patterns - Cat's Paw, Fern, Tree, and of course Feather and Fan - but a very non-traditional colour. And I love it!
A single skein of Malabrigo sock yarn (or equivalent 400m) gives a shawl about 32 inches/80 cm in diameter. A second skein adds about 10 inches/25 cm to the diameter, with a larger and more dramatic Feather & Fan border. You could work in any yarn - a DK would make for a bigger shawl, or go with an aran or even chunky for a great blanket!
Pattern available at Patternfish and Ravelry. The sample is available for viewing at Lettuce Knit.