Looking at the original storyboards and some concept sketches that came ouy later I always envisioned a stark contrast between Orange and Grey.
First the rooms. I was thinking make the grey side seem harsh and uninviting so when Orange sees a glimpse through the hole it looks like paradise to him. So the grey room could look like concrete walls, mildew in spots and fluoresent-like lighting. The orange room would then be bright with warm lighting. The walls could be… I don’t know, wooden, stucco? :curious: Harsh comes easier to me than warm. 
The guys would then need to match their environment. The Greys are supposed to be springy in parts of the story so making them concrete probably is a bad idea. Like you guys mentioned Play-doh would probably be best then. We could then add things like finger prints and those weird fold/join spots you get with play-doh. On top of that we could make them look moldy or dirty.

So what would Orange look like then, TAA DAA, silly putty.

Very similar to play-doh but much more shiny and “happy” looking. Plus it would give a continuity between the different species. This would also work well for the spheres because whats the one thing everybody knows how to make with silly putty? A ball.
If this sounds good Kirt I’ll work something up for it.


