recently i have been working on some scenes and have encountered the problem of creating soft eye candy such as seen in mrdodobird's last upload and many brazil renders.  i have always had problems creating materials and scenes like this.  what i mostly want to know how to do, is create that "soft metal" that the yellow on the robots have. I am looking to do this any way possible including by lighting setups, certain materials, textures, or render process.  I would appreciate any tips, either artistic or technical.