Making your own ringtones, not using verizon
Any sound, including recorded sounds, that are sent offers the option to save as ring tone upon opening the file. You do not have to send as a picture file.
Highlight the sound under your sounds file, select "send", and send it to your own number. When you receive it, open it and select options. One option (scroll down) is to save as a ringtone.
I do this all the time, so it absolutely works.