The article posted below contributed by Patrick. Thanks Patrick!
For most of the people, changing a phone ringtones is kind of funs. The article below will share “How to create and share free iPhone ringtones”
Basically there are 2 places to find free iphone ringtones:
a) Browse directly from iphone: m9 ringtone app from Apple Appstore. Just search for mobile9 in the Apple iTunes App Store.
Note: Please refer to m9 Ringtone.
b) Go to http://gallery.mobile9.com/c/apple-iphone-ringtones/1/
Again you have a choice to create your own iPhone ringtones as below: