I just finished knitting Piper's Journey by Paula Emons-Fuessle, the host of Knitting Pipeline. It's a quick, fun knit. Once you plow through the last few rows of the garter stitch body, there's a knit-on lace panel. The pattern is easy to memorize, so it was great train knitting.
I used Plucky Knitter 55/45 Cashmere/Silk DK in Rustic Quintet. It's a deliciously soft scarf.