Macy's offers the Martha Stewart Collection Collector's Enameled Cast Iron 6-Quart Round Casserole in eight colors (Cranberry pictured) for $59.99. This $20 mail-in rebate drops it to $39.99. With free shipping, that's $140 off list and the lowest total price we could find, although we saw it for $10 less in January. It features an enameled interior and is oven-safe to 500 degrees. Deal ends today.