Buttons by lou lou turns an egg carton into a wind chime using pipe cleaners and bells and hanging them all on a hanger.
Good for ages 6 and up.
Get the instructions here:
http://buttonsbyloulou.blogspot.com/2009/05/childrens-craft-egg-carton-wind-chimes.html
Dalle un colinho makes a stack of egg cartons tying knots in between each one to create a sound.
Get the instructions here: (in Spanish)