The bottles were made in French opalescent glass with the hobnail pattern. In 1940, Fenton started selling Hobnail items in French Opalescent, Green Opalescent and Cranberry Opalescent. Windows are of handmade opalescent glass tinted pale yellow. Enamel can be transparent, opaque or opalescent (translucent). "Opal" is a common translucent or opalescent diffusion. Each face is made from opalescent glass, now often called opal glass or milk glass. "Opal" for example is an opalescent or translucent diffusion filter. Opaque or opalescent white diamonds are also caused by microscopic inclusions. Add iced Champagne until it attains the proper opalescent milkiness. Northwood also made custard, stretch and opalescent glass. Unlike honey bees, it has pale opalescent blue stripes on its abdomen. A number were formed from handmade opalescent glass. Bonham Carter wore opalescent makeup to portray her romantic nihilistic character with a "smack-fiend patina". All the rooms got extra daylight from a clerestory of opalescent glass. Opalescent glass is the basis for the range of glasses created by Tiffany.