Clip Peg Large
I just made a small improvement to http://www.thingiverse.com/thing:298955 by u/thomasforsyth
I made the clip larger so you have a better handle and an easier lever.
All credits must go to the original designer thomasforsyth, I just enlongated the handles with sketchup.
Edit: I've updated the thing with some pictures of the clip in action.