I currently have four volumes of music arranged for violin and clarinet duet. They're available on Sheetmusicplus.com.
Duets for Violin and Clarinet, Volume One and Duets for Violin and Clarinet, Volume Two are two volumes of classical pieces arranged for violin and clarinet. Composers whose music is featured in these two volumes include Bach, Beethoven, Handel, Mozart, Grieg, Schubert, Satie, Elgar, and others. You can see the complete list of pieces in each volume by going to the second preview page on each volume's page (click on "Look inside," and it's the page after the cover.)
I also have two volumes of Christmas music duets for violin and clarinet. Volume One and Volume Two are available on Sheetmusicplus. The song "White Christmas" has also been arranged for violin and clarinet.
Bartok's Romanian Folk Dances are also available in my arrangement for clarinet and violin.
I plan to arrange more music for this combination of instruments in the future.