The one to the right is the Cat's Eye Scarf from "A Fine Fleece" by Lisa Lloyd. It's knit from Haneke Select 75 percent merino, 25 percent alpaca, 460 yards, on US6 (4mm) needles. The finished size is 8.5 inches by 63 inches.
The scarf below is Off-set Diamonds from Caryll Designs. The yarn is Baruffa Maratona, two skeins from a thrift store. Knit on US7 needles. Finished size is 6.25 inches by 57.5 inches.