Urban Decay Triple X Shine Cooling Lip Gloss
I'm fairly certain I never used this set, either, which is why it looks like it was ripped from some kind of beauty museum's shelf. These are the shiniest glosses I've ever tried and were like vinyl for lips. Instead of being flavored, every shade was minty, making your breath ultrafresh. I have a full-size tube of Carney and used it religiously back in the day.
From upper left: Heatherette, Uzi, Disco Inferno, Id, Carney, Love Junkie, Ozone, Baked