Night and Day (as a slow bossa)
What A Difference A Day Made
Basin St Blues
And I Love Her (as a slow Bossa Nova)
Meditation
I'll Never Smile Again
Do You Know What It Means To Miss New Orleans
Ain't Misbehavin'
Europa
Anything Goes
Black Orpheus
Theme From Ice Castles
Undecided
Autumn Leaves
How High The Moon

Song's along these lines seem to work pretty good.