I have been wondering how cycles would handle a material or object within another object. There was no real reason it wouldn’t work, but I always found the process to be a pain in the a$%* with blender internal.
I wanted an ice/glass/gemstone type material with two objects within it. One was another simple material and one was an emission object so that it would have an internal glow. Happily it is really easy. Cycles doesn’t have many hoops you have to jump through as it would work in a real world object so it works here. I kept tweaking other aspects of the shader so that it ended up looking a little more like a rough gritty ice. This is still a basic material, so I could add wear to the edges or peaks of the ice so that is more white and opaque. But for a first test I think this is fine.
I will try and incorporate this Blender Cycles ice material into something fun soon.