Where to get 'Cuda tail light wire harness clip?

Are the tail light wire harness clips available from anyone? These are the clips along the rear edge of the trunk that hold the wire harness. Are there 4 or 6 clips? Most of mine are missing and I can see where 3 were mounted. I am working on a 1971 'Cuda, but I would guess all 1970 - 1974 E-Bodies used this clip. The picture shows the clip I am looking for.
Thanks

Good question, I have one close to breaking on a valve cover.

great questions guys. on the topic of the clip on the valve cover, what type of welder is used to affix a new one to the cover? also i believe the clip for the valve cover is made aftermarket and the the clip for the wire harness you will have to get off a junk car if there are any left.

If nobody is reproducing these, are there any alternatives others have used?

I remember findingsome thing close on the rack at napa