Walmart offers the Body Candy Women's 2-Piece Sleepwear Set in seven colors (Black Mood pictured) for $7.50. Opt for in-store pickup to dodge the $5.99 shipping charge. That's $7 off and the lowest price we could find. It's available in sizes S to XL, although not in all size/color combinations.
Homie Gear via eBay offers its open-box Homie Gear Men's Fleece Fur Slippers in Khaki or Black for $8.99 with free shipping. That's $26 off list and the lowest total price we could find. They're available in sizes 8 to 13.