USB Light Switch

I have a spare light switch and I want to convert it to play a song when I flip the switch. How could I do that?

Get an audio recording module like this and replace the play back button with your switch. But the switch will have to be flicked on and off vary quickly to work right.

http://www.radioshack.com/product/index.jsp?produc...

Another option would be taking an existing playback device of some sort. Like the circuit from a record your own greeting, greeting card. These use an improvised on/off mechanism that can easily be replaced by another switch.