FWIW, Made this a few years ago.
Old servos & a little bit of electronics knowledge come in mighty handy at times.
http://i2.photobucket.com/albums/y7/...35/IMG0004.jpg
http://i2.photobucket.com/albums/y7/...35/IMG0002.jpg
http://i2.photobucket.com/albums/y7/...35/IMG0001.jpg
Might give you a few more ideas Jeanette.
L.