Operatic duet for a tenor and soprano?

Question

My friend and I were asked to sing at a showcase. We were hoping to sing a duet from an opera. We are fans of Mozart especially, but we would really like something comedic and light, that still shows off our voices, which are very operatic.
He is a lyric tenor, I believe he is most comfortable below and A or so. I am a light lyric coloratura, and I feel most comfortable above an A. (haha, a bit of fach humor there.)

Any suggestions would be appreciated. We're really open to anything and we're hoping to have a great time singing together to find something.

Answer 1

Perhaps "O soave faniculla" from La boheme could work.
Or "Tornmai a dir che m'mami" from Don Pasquale (by Ruffini) (it's short, though).
"Libiamo ne' lieti calci" from La traviata by Verdi (though I think it calls for a chorus)

Answer 2

What about the Don Jose/ Micaela duet from Act III of Carmen? It's not comedic, but probably light enough to suit both voices.
If your tenor is up to the fireworks, there's a lot of bel canto duets just waiting- right now the Elvira/Arturo duet form I Puritani springs to mind, but far from comedic....
An old chestnut to fall back on, neither high nor very coloratura is Rossini's Cat Duet. You can camp it up as much as you wish ( the difficulty is the text "Miaou") and is usually a hit with any age group. While it doesn't fit the requierement of being an operatic duet, it's still by an operatic composer....
If your tenor doesn't mind abandoning his fach a bit, there's always Papageno/Papagena duet from Magic Flute. (Generally considered light hearted)
otherwise, my mind keeps spinning around the lyric to dramatic repertory. sorry, it's just something I'm stuck with.

Answer 3

You could try the tenor and soprano duet from the Bach Mass in B Minor - yes, I know it's not opera but it's a nice piece.

Answer 4

The duet 'Bei Mannern' from Mozart's Magic Flute. Quite light, not comedic I'm sorry, but otherwise might be just what you are looking for.