In my many Internet excursions, I have come across many interesting ringtones from the Korean company LG, makers of numerous cell phone models. Some I have been able to find elsewhere, some I have only found in one or two places. Here is a non-exhaustive list of all the musical [non-beep/telephone-sounding] LG ringtones I have come across to date, with titles referenced and phone models given. Cross-company ringtones [like those on the Android] are not given, due to the fact that several companies have them in addition to LG. Download links and/or videos are included when possible.
Thanks to TheVividYoshi, here is a ZIP download of all the LG Cosmos 2 ringtones in Wave audio format.
Here are some of the sources of these tones:
http://www.imserba.net/forum/showthread.php/125385-Other-Phones-Original-Tones-LG-F3000-Samsung-S5620-Monte-added - several pages long, and there are other brands' ringtones, too
http://www.nidokidos.org/threads/172577-LG-Mobiles-Mp3-Ringtones-Part-01
http://www.nidokidos.org/threads/172578-LG-Mobiles-Mp3-Ringtones-Part-02
http://www.nidokidos.org/threads/172336-LG-Revolution-Original-Ringtones
https://skydrive.live.com/?cid=4BA711B547B2878C&id=4BA711B547B2878C!105
http://www.youtube.com/watch?v=0ap4vZkPh_c
http://www.youtube.com/watch?v=2HcBTdUMPLE
http://www.youtube.com/watch?v=yQa3kDmJ-tA
http://www.youtube.com/watch?v=K0CyVi-J68c
You can also find many newer LG ringtones here: http://droidpapers.teusink.org/ringtones.php and at http://freetone.org/board/standard/15-4-2-0-0-0-4-0