Criteria- exclusively vocoder, or are regular voices acceptable in a song that uses vocoder?
Not sure exactly what vocoder is, but I think I know the difference between that and the talk box, or autotune.
At first the track "riversong" by Tonto's Expanding Headband came to mind. Listening to it now I'd say it's probably the talk-box. Same with most of Daft Punk's songs from their album Discovery. They do use what sounds like Vocoder in their last album "Human after All"- songs like Television, Robot Rock, and the title track.
Speaking of Air another great one from Moon Safari in addition to Sexy Boy, is "New Star in the sky". That's a classic.
Beastie Boys- Intergalactic
Earth Wind and Fire- Let us Groove (loved this song in my youth- still a fine song, if you continue to boogie on down that is)
Vocoder Bass- by DJ Icey (and he probably has more)
I'd imagine there are more old school hip hop and r & b examples out there too