Thanks! Another idea I was entertaining was teaching them Lisp (Racket?), Haskell and Prolog, just long enough for them to get a feel for other programming para

Thanks! Another idea I was entertaining was teaching them Lisp (Racket?), Haskell and Prolog, just long enough for them to get a feel for other programming paradigms and ways of thinking. However, I settled for the project, eventually. Anyway, any ideas what should the actual project be? What kind of project would you, as a student, prefer to be coding? What lind of inout from the teacher would you find valuable?