Costume Design Archive: Valley of the Dolls (1967) Costume Design Archive: Valley of the Dolls (1967) Costume Design Archive: Valley of the Dolls (1967) Behind the Scenes Photos of Wardrobe Tests From Valley of the Dolls. Valley of the Dolls Strappy Gown by Spell in Opal is a floaty, romantic statement piece designed to move with you. Crafted from silky LENZING ECOVERO viscose, this gown drapes effortlessly with a soft, lightweight feel. The Opal print brings a dreamy wash of color, making it perfect for everything from sun drenched days to evening moments. Fabric100% LENZING ECOVERO Viscose CareGentle cold machine wash with mild detergent. Do not bleach. Hang dry in shade. Reshape and cool iron whilst damp. Dry cleanable. Do not wring, twist, or soak.