Some Iain M. Banks Culture Universe GCU Names:

Prosthetic Conscience
Just Testing
Very Little Gravitas Indeed
 Sweet and Full of Grace
Different Tan
Fate Amenable To Change
Grey Area (AKA Meatfucker)
Jaundiced Outlook
Problem Child
Reasonable Excuse
Tactical Grace
Unacceptable Behaviour
Cantankerous
I Thought He Was With You
A Series Of Unlikely Explanations
Only Slightly Bent
Big Sexy Beast
Dramatic Exit, Or, Thank you And Goodnight*
Excuses And Accusations
Just Another Victim Of The Ambient Morality
You’ll Thank Me Later
Well I Was In The Neighbourhood   
Stranger Here Myself