Ok, I have the 2 vents ( 1 has busted clips on the back but is fine other than that. ) Neither vent has the little slide button though. I also have the clock and the light/dimmer switch.
Pics below. Make me an offer.
Brisvr4, I might have some more vents at home as well. If I can find them, I will let you know what condition they are in. Between the two of us, we might be able to offer Frosty a complete working set.