I recently knitted a simple moss stitch scarf. The yarn I selected was Drops Fabel in a self patterning shade. I cast on approximately 60 stitches and used 3mm knitting needles, I knitted three whole balls to make a reasonable length scarf, if you prefer a longer scarf I would recommend using four balls.
I really enjoyed working on a simple project that didn’t require too much concentration. I have since started another scarf also using Drops Fabel, but this time on 4mm knitting needles so it knits up even faster!