The last one *might* be from that comedy modern take on the old Green Lantern story where Hal's flogging power rings for $1. The bit at the end where Batman, Supes, Wonderwoman and the Flash are all in a plane laughing at the idea of *them* having power rings, then everybody goes somber at the thought of Lantern Wayne.
I'm pretty sure it was posted recently in pre-crisis scans daily.