 But thanks to its imaginative design, intricate detailing, and the very high visual quality of the final product, Robby immediately became the "face" of the film and soon became an enduring popular culture icon.The Robby suit was constructed using a range of materials including metal, plastic, rubber, glass, and Plexiglas.The plastic parts were a pioneering example of the use of the then novel technology of vacuum-forming heated plastic over wooden molds.