Over the years many fans have expressed their devotion to Lost in Space by building a variety of scratch built models and full size replicas. Depending on the skills of the maker, the items built can range from incredibly detailed walking and talking robots to simple highly inaccurate interiors of the Jupiter 2. More often than not the fan built models and replicas show great ingenuity and some very imaginative use of materials. Makers of these items generally become quite attached to their creations so usually these items rarely come on the market and when they do they invariably command a high price. Sale tags of $10,000 plus are not unheard of for good robot replicas.