The process is straightforward and results in sending your ringtone directly to iTunes. Mac users can easily create ringtones for their iPhone using GarageBand. When you do, follow the instructions for the appropriate phone and desktop operating system. In any case, make sure you have the audio files for the music you want to turn into ringtones.
If you'd like to do the latter, you can extract audio from any YouTube video using this tutorial. With this do-it-yourself method, you'll be able to turn any piece of audio into a ringtone-any part of your favorite song (not just the chorus), or even audio from a YouTube video. At about $1-2, this method is still an option today, but luckily, you can now create your own ringtones for free and load them onto your device. Long ago, the only way to get custom ringtones on your phone was by purchasing them from your service provider.