Or anyone else, naturally. What can I do about this?

One piece has already fallen off (I have it. Not sure if it’s any use).

I’m not super concerned because these seats aren’t wonderful (shitty bolstering) anyway and eventually I want to replace them with H3 seats. Or, if bolstering can be added, recover them with some actual leather instead of this vinyl crap. Still, I’m not exactly in a hurry to finish destroying the seat... so what can I do to patch this up a little that won’t look like shit?

ALSO YES I KNOW I NEED TO VACUUM MY TRUCK SHUT UP

Thoughts? Any help would be appreciated.