If you're a frugal shopper, your best bet is this Bandana. It's a terrific product, while not very costly. Another nice option is this SENSI STUDIO Hat. While the price is not very high, be sure that this piece will become a worthy addition to your wardrobe. You might also want to consider this Federica Moretti Beanie. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for something in between pricewise, we've got your back with this Dolce & Gabbana Bandana. This piece is likely to become a total wardrobe staple. You can also take a look at this Alexander McQueen Bandana. It's an attractive option both price and quality-wise. And do check out this Bandana! It's a very popular item and good value for money.