Messing around with reflective surfaces and mirrors.
Well, this isn't really work in progress; just something I was fooling around with. Since I don't know that much about shaders and whatnot, I decided to experiment a little, which is what I have been doing for the past three days. This is a mirror cube inside a room textured with a checkered material and colour ramp. I animated the cube moving around and rotating for 3 seconds. It took about 3 hours for it to render it all.