I got some 3/4" clips from Amazon Basics today and made some holddowns per your great idea and info. I’m not all that impressed with these clips, however, I think the clip is a thinner material than a brand name clip (about 9mil thick). They’ll work, I just need more of them probably.
I cut a dozen and decided right away that the angle grinder was a bit too ‘dramatic’ for this task so switched to my Foredom tool with a cutoff blade and that worked like a champ! Safe and only took a couple of seconds per clip (it took more time swapping clips in the vise than cutting them)!
Thanks again for posting the idea!