First of all, they are $35 (which pays for the yarn, shipping and my time). If you'd like one, send me an e-mail at firstname.lastname@example.org, and let me know the following information:
1) Which house you want (Gryffindor, Slytherin, Ravenclaw, Hufflepuff)
2) If you're getting a Ravenclaw scarf, do you want the book colors (Blue and bronze) or the movie colors (blue and silver)?
3) What size would you like?
Large (closest to movie dimensions) - 12" x 7'
Medium - 10" x 6'
Small - 8" x 5'
Keep in mind when you order that these scarves are double thickness, so they are warm! If you live up north and are using them for a costume, they'll keep you nice and warm on Halloween.
If you'd like one, reserve a spot now, because they take me a few days to make. You won't have to pay until I actually start to make your scarf, and I'll let you know when that happens. Have fun!
EDIT: I've gotten enough orders to the point where I can no longer guarantee that your scarf will be done before Halloween. If you've already placed an order, then you will get it before Halloween, and there's a chance that if you put in an order after this point, you still will, I just can't say for sure. I am still taking orders, however, so don't worry. Thanks so much for the huge response! :)