As part of Boulton's efforts to market to the wealthy, he started to sell vases decorated with ormolu, previously a French speciality. Ormolu was milled gold (from the French "or moulu") amalgamated with mercury, and applied to the item, which was then heated to drive off the mercury, leaving the gold decoration. In the late 1760s and early 1770s there was a fashion among the wealthy for decorated vases, and he sought to cater to this craze. He initially ordered ceramic vases from his friend and fellow Lunar Society member Josiah Wedgwood, but ceramic proved unable to bear the weight of the decorations and Boulton chose marble and other decorative stone as the material for his vases. Boulton copied vase designs from classical Greek works and borrowed works of art from collectors, merchants, and sculptors.