If you're after a thrifty option, your best bet is this Lauren Conrad Scarf. It's a popular item, while not very expensive. In this price range, you can also take a look at this Apt. 9 Scarf. It's also a popular item and won't break the bank. You may also want to look at this Chaps Scarf. This item is not expensive either, but it will make a difference in your wardrobe.
If you can afford to spend a little more, look no further than this Apt. 9 Scarf. This item doesn't cost the earth, but absolutely indispensable in your wardrobe.