Here's a scarf I knitted for my granddaughter. She is a Harry Potter fan. You can make it any color you choose. It's very simple. I used a 16" circular size 8 needle. Cast on 70. Place marker and join in the round. Work in the stockinette stitch (knit all stitches) 7inches wide and 70 inches long without fringe, or as long as you want it.
I was taking it to her today, but seem to be under the weather a bit, so it will have to wait.