Underhood insulation clips

That's what I used on the 67. Mine came in looking gray so spray bombed them with some matte black.
A tip putting them on...if you want. After banging my fingers on the first couple, I cut about four inches off a wooden broom handle. I put the clip at the hole, wood end over it, and then a wack on the other end with a rubber mallet. Worked like a charm.
A year later decided to touch up the hood inserts. I took long nose needle pliers, lined it up on the center tab, and gave it a close slow pull and they all popped out. I'd saved the broom handle so it was used again.