Originally Posted by
JoeTBM

How about Something like this, the plastic "fastener" should squeeze into the hole
https://www.ebay.co.uk/itm/123011023...Bk9SR8zgq-GAYQ
Double (to Clip) option
That is in France, not sure your location. Noted on site "Doesn't ship to US" but hopefully you can find one that would.
If you give some dimensions I might have one that would fit that we have salvaged.
Interestingly enough, this listing (also from "cyclingcolors_france" on eBay) does seem to offer the same product, and the listing indicates they
will ship to the US.
https://www.ebay.com/itm/122994897965
Not cheap, but not stupid expensive either (about $7.00, including shipping, not including sales tax). I just might order one.