Mercury glass jars and vases provide elegant, romantic decor at weddings and events. Themed toward the romantic luxe and classic looks, Mercury glass has gone through a big revival of late. The Mercury glass trend dates back to the 1800s, first in Europe before being regaining popularity in the early 1900s. These days it is popular for decorating weddings and events. Add candles and use as a candle holder, or create elegant floral bouquets. Mercury glass vases are great as table decor or decorative accent pieces.