A best bet are these Faux Fur Earmuffs in Carrot (pictured) for $4. Opt for free ship-to-store pickup to dodge the $8 shipping fee. That's $11 off and a very low price for such ear muffs. They feature an acrylic/polyester mix.
Stocking up? Coupon code "SPENDIT" takes $10 off when you spend $50 or more.