You should do the printer emitter and a stud texture.
Stud texture are bad idea, I not mind make printer emitter.
You should add a rainbow like rainbow spray that type but as a jet that would look awesome.
Something like this
[img ]http://i.imgur.com/43Xvyj5.png[/img]
But smaller
I can do that make one, add with the thin ring or default ring?