There's a cute (free) herringbone scarf pattern
I spotted it at Raverly. It inspired me to use up one skein of Cascade Yarns Baby Alpaca Chunky that I impulsively purchased at my LYS a couple of years ago.
(the 108 yd hank = 5.5" x 25" flat)
BTW: the herringbone pattern stitch is easy as pie. Try it!
My Plan B
buttonloops, shown below. I couldn't figure out how to make
K2tog/YO buttonholes in this the middle of this herringbone stitch. Gah!