Hermione wore a beautiful Fair Isle style scarf in the movie, "Harry Potter and the Half-Blood Prince," and I knew my granddaughter would love a scarf like it.
Freshisle Fibers on Ravelry came up with a knitting chart and posted about her scarf on her blog. The colors of the motifs on the scarf are difficult to see in the movie, but it's fun to knit a scarf similar to Hermione's scarf.
I was going to use KnitPicks Palette yarn, but they were out of the purple, so I am using a Norwegian wool yarn called Strikkegarn. There are lots of colors available, but the yarn is heavier, so her scarf will be thicker and warmer. I'm using 3.5mm needles.
There are online pictures of Hermione wearing the scarf, and knitters are coming up with various shades of colors for their scarves