Pottery Barn 12 Days of Christmas Holiday Ornament Set. The set includes 12 mercury glass ornaments, each representing one of the 12 days of Christmas from the classic carol. These ornaments are often hand-blown and silvered on the inside for a vintage look. The set is a retired item from Pottery Barn. The ornaments reflect light beautifully, adding a touch of elegance to holiday decor. Condition * This item is in excellent pre-owned condition with light signs of wear if any * Actual product colors may vary from images shown due to different viewing devices and lighting.