If you're in a thrifty mode, your best bet is this Michelsons of London Scarf. It's a fantastic piece, while not very pricey. Another nice option is this Scarf. While the price is not very high, be sure that this item will become a great addition to your wardrobe. You may also want to look at this Topman Scarf. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking for something in between pricewise, why not look at this Brooks Brothers Scarf. While the price is very reasonable, this item is an easy wardrobe update. It's also worth taking a look at this Ralph Lauren Scarf. This item is extremely popular and, just as importantly, not too pricey. Take a look at this Dolce & Gabbana Scarf too! Great value for your money.