Easiest Ever Infinity Scarf By Lori Bennett Kramer - Free Crochet Pattern - (ravelry) ;-) // This is a quick and easy infinity scarf. I used worsted weight yarn. If I use this pattern again, I will use bulky yarn.
Free Crochet Hooded Scarf Pattern, by Sedruola Maruska. One of five free patterns in 'Free Crochet Accessories Patterns for Crochet Headbands, Leg Warmers, Hooded Scarves and More.' Free registration required at CrochetMe.