Here's my Swallowtail Shawl finished. It took 9 days. I did the nupps on 2 mm dpns, it was the only way I could do it. When I was in the middle of the nupps I swore never again!, but it's such a cute little shawl, and perfect for gifts, so I'm pretty sure I'll be making more of these!
The yarn I used is a 2-ply merino called Duo from Design Club dk. It made a very crisp shawl when blocked. It has 540 meters/100 grams, which is heavier than the alpaca the pattern suggests (400 yd/50 g?), so I thought perhaps my shawl would be quite a bit bigger, but I don't think it did. I used a little more than 50 grams for my shawl.