Walmart offers the Crock-Pot 20-oz. Lunch Crock Warmer in Red (pictured), Blue, or Gray, model no. SCCPLC200, for $15.99. (Amazon charges the same with free shipping for Prime members.) Opt for free in-store pickup to dodge the $4.97 shipping fee. That's tied with our mention from last week and the lowest total price we could find by $4. It features a carrying handle and detachable warming base.