I haven't tried playing the song but "Seeing Things" by the Black Crows seems to be full of appegiated chords. They aren't all the open chords from GF1 and 2 but they are played very slow and sound like they should be pretty easy. As I am typing this I am beginning to wonder why I haven't tried this song.

I have been through GF1 and 2 and know all the open majors and minors but I wouldn't say that I am "finished" with GF1 and 2.