There are eight different styles to choose from with these plastic flip or 3-D lenticular 4" x 6" postcard invitations. Each set of eight cards comes in clear cello packaging. "[Lenticular]is a way of using different kinds of lenses to create 3-D depth in an image or to flip from one image to another. But more importantly, it adds a whole new dimension of fun!" Leslie Montalbano, prepress manager for ISCREAM, told TDmonthly. Launch date: May 5, 2009.