Shnoop offers the Erni Vales Men's Tunnel Beat Dress Socks 15-Pack for $34.95. Coupon code "DNTUNNEL10" cuts it to $24.95. With free shipping, that's $10 off and the lowest price we could find. They fit sizes 9 to 13.
Of note, the countdown timer on the product page does not reflect an actual expiration time and resets daily.