The houses at Hogwarts have a couple of different patterns of scarves, one with alternating chunks of color, and another with small bars of accent color. Good thing they're both easy to make.

ch = chain sc = single crochet

I suggest using Super Value Forest Green and Gray. Mostly because they cost just a few bucks.

Scarf #1

The younger witches and wizards wear scarves with large chunks of color.

Start with green. ch 40 for a nice, thick scarf. sc 12 rows of green change color to gray yarn sc 12 rows of gray change color back to the green yarn Repeat 2-5 until you've made your scarf as long as you like it. End the scarf with a 12-row sc of green so that the ends look the same.

Scarf #2

The Slytherin scarf for older kids has a pattern of two small silver lines on a field of green. This free crochet pattern will show you how to make a quick and simple Slytherin scarf.

Start with the green yarn.

ch 40 for a nice, thick scarf sc 12 rows of green change color to gray yarn and sc 2 rows sc two rows of green sc two rows of gray again Repeat 2-5 until you've made your scarf as long as you like it. End the scarf with a 12-row sc of green so that the ends look the same.

I chose a single crochet stitch so that the scarf has fewer gaps in it. You can also knit and felt a house scarf.