I have also considered doing a Dixieland Dykes collection: DD+3 numbers as performed by other people.
I know I have these:High Society (Wynton Marsalis)
Sugar Blues (Nina Hagen)
Copenhagen (Coffee Club Orchestra)
St. James Infirmary (White Stripes)
Midnight in Moscow (Firehouse Five Plus Two)
I'm sure I have more, I just can't think of them right now. Let me know of things that belong on this list.