Well actually that's not strictly true, for to reasons.
1- Grump don't keep secrets he is an open book what you see is what you get.
2- If he can help anyone he will, I know I see it all the time.
We just wanted to see who would post a thread and he won, he said David I guessed at Ed or Doug but he knows you better than I do so I think he is cheating.
Anyway here is what I helped him do, I used needle files to shape and smooth the clips then we stuck tie clips to them to make pretty pen clips.
Simply shape your piece of metal as in the picture and fold it at the red line point you have made a clip in any shape you wish.
You can add wings at the bottom and fold them back if you want to make a grip on it.