Free Pattern: Striped Phynn Scarf   Yarn: Blue Sky AlpacaSport Weight    Needles: US #5 24" circular

This might look familiar.  Its a different take on the mostly-solid color Phynn Scarves.  The only difference in this pattern is that there is a specific way to change colors to get the right striping effect.  There are more rows than the solid version too but it is still a relatively quick project to work up.  Try using up some leftovers that you already have on hand if you don't want to plunk down the bucks for this particular yarn.  I just happened to have this group of lovely yarn in my leftover bin.  Other weights of yarn can be used too but do a gauge swatch to get an idea of how long it will end up being.

(close-up view)