LOOKING for portable mobile

I am looking for a mobile for my sons pack & play, I NEED it to have light, play music, and turn of course  

have you thought about one of these?
http://0.tqn.com/d/toys/1/0/b/g/oceanwonders.jpg

Quoting miss mandiie:" have you thought about one of these? http://0.tqn.com/d/toys/1/0/b/g/oceanwonders.jpg"

Thank you, its cute! But does it HAVE to go on the side of a crib? Looks like it screws in or something....

that i am not entirely sure of