Here’s the pattern for the Harry Potter scarf that I made (and designed).
3 skeins of red yarn (I used Caron Simply soft Autumn Red), 1 skein of yellow yarn (I used Caron Simply soft Sunshine)
US size 7 (or smaller, depending on how large you want your scarf to be) circular knitting needles
crochet hook (for fringe)
Cast on 100 sts in red yarn and put on place marker. Join on the round. Knit in stockinette for 30 rows, then change to yellow yarn and knit 4 rows, switch to red and knit 4 rows, go back to yellow and knit 4 rows. Repeat 30 red rows and stripes until your desired length. Block if desired, then add fringe. I made mine 3 inches long. Et Voila! You have your very own Gryffindor scarf ready for the next Harry Potter movie premier! You can change the colors to match whatever House you like. Here’s my scarf.
Just a note, 100 stitches make a very wide scarf. Mine ended up being 10 1/2 inches wide, so if you want a thinner scarf, cast on about 60 to 75.