Source for Cross or Jesus Fish Clip

[Mengtian]

Is there a source for a cross or Jesus Fish clip for designer pens or Graduate?

All I can find is for Trim line or Slim line

 

[Robert Taylor]

I use the slimline clips on Designer/Euro style pens. Just leave the threaded part out very slightly to center the clip.

 

[Mengtian]

I use the slimline clips on Designer/Euro style pens. Just leave the threaded part out very slightly to center the clip.

So, in other words, do not press the threaded part flush, just maybe 1/16" proud?