Clips that hold in headliner needed

Hi guys,
A buddy of mine just bought a '67 camaro and he needs to have a headliner installed. The only problem is that he needs the metal clips that hold the headliner in. Can someone help me find them? And also, what exactly are they called. In the event he needs to call around for the part, it would be better if he could give the proper name.

I ordered the clip/hangar conversion for my 81, I still have the plastic clips around somewhere. If I can find them, I wonder if they will work for your purpose......my kit came from Classic Industries.

BamaZ28