you could offer a screensaver made out of your flash movies. itīs very simple by using the program flashwiz which you can find at
http://www.silkmoth.com/download/flashwiz.htm.
Another (more innovative) possibility which is not difficult to fulfil by using flash is to construct a game (for example for the corresponding song); content of this game could be to lead a pope through some kind of atlantic labyrinth and everytime you choose the right way a song continues playing until it is finished at the end of the game.
Burkhard Schneider