Bon-Ton offers the Keurig The Original Donut Shop Holiday K-Cup 20-Pack (pictured) for $8. (Search "Keurig The Original Donut Shop" to find them.) Plus, coupon code "FREESHIP" bags free shipping. That's 40 cents per K-Cup and the lowest total price we could find by $10.
Also available is the Keurig Christmas Tree 15-Count K-Cup Variety Pack for $8 with free shipping via the above coupon. That's 53 cents per K-Cup and a price low by $5. It includes K-Cups from The Original Donut Shop, Green Mountain Coffee, and Gloria Jeans.