Hello! So, I was developing this world some few aeons ago and developed a race for it that is made of completely synthetic materials. They, anatomically, were humanoid with extremely scaled hips and legs. Feet were slightly less so, but still not excluded. They also gained 'sustenance' by inhaling vapors from cylindrical containers that were about the size of a cigarette. The containers were just like cigarettes, but instead of addiction(depending), they gained nourishment from the vaporized material inside the container. Not sure how relevant that information is, but it leads up to what I was looking to find out: What materials that are man-made would be suitable for the general 'flesh' and 'bones', along with some organs, that would allow for a nigh perfect replica of human exterior characteristics?