There are many of beautiful rivets on Arjac's terminator armour, I really love them. But half of them have dammaned bubbles. I thought that filled the bubbles would spent lot of time, So I cut off them and sculptured some new.
From the pic below, you would find that the top of the armour have had badly deformed too. I cut off the small anvil, then I could sand the surface more easily.
PS: My friend Jacob asked me : How I can made the suface of green stuff smooth. The answer is: water. Some other modeler would like to use Vaseline or French chalk, there are all good idea in this case. But I prefer to water, I wet the sculpture tool, and let it slither very carefully, then the putty would get somooth. By the way, always keep you tools clean, that is imporant too.