Retired and Beautiful Set. Pottery Barn Twelve Days of Christmas Mercury Ornaments, Complete Set of 12. This was described as follows by PB. A beautiful addition to your tree-trimming tradition or a thoughtful gift idea for someone on your list, this set of mercury glass ornaments features 12 unique ornaments each representing a verse from the beloved holiday carol “The Twelve Days of Christmas”. Made of mercury glass. Wipe with a soft dry cloth. 3″ w x 2″ d x 2.5 h. 4.5″ w x 1.5″ d x 2 h. 3″ w x 2″ d x 2.75 h. 3″ w x 1″ d x 2.5 h. 2.5″ w x 2.5″ d x 2.75 h. 2.75″ w x 3″ d x 3 h. 2.75″ w x 2″ d x 3.5 h. 2″ w x 2″ d x 2 h. 2″ w x 1.75″ d x 4.5 h. 2.25″ w x 1.5″ d x 5 h. 3″ w x 1.75″ d x 5 h. 1.75″ w x 1.75″ d x 5 h.