INVITATIONS: So Hot They're Cool

Sophisticated and funky, these invitations for Moët & Chandon’s M Lounge—a promotion that popped up in various cities this winter—were made with out-of-the ordinary materials. Produced by TPN, the invitations used heat-sensitive liquid crystals coated onto black vinyl and then sealed with Mylar, so the surface changed color as recipients handled the cards. The raw material is available from Liquid Crystal Resources and prices vary by quantity—for instance, 100 to 249 square feet costs $16.35 per square foot, and 250 to 499 square feet costs $13 per square foot. —Mark Mavrigian
Posted 01.19.05