Thanks. Personally, I'd like to make the caps a brushed metal texture, since that was more of how they were in the movie. I've just been having troubles producing something procedurally that I've been happy with.
Also I feel that there is something just slightly off on the glass, but I cannot put my finger on it. But I could also be wrong. I am my worst critic.
An example of what I'm trying to recreate is here:
Screen Captures
Also I'm going for realistic, but not photo realistic, if you get my drift.