Like it or not MP3 and polyphonic ringtones and Jamster - the company that sells ringtones via commercials on music television - have invaded our world. You can't go to the store, movie or hairdresser without hearing someone's individualized, cheeky and frankly unfair to the general public ringtone of whatever song MTV tells them is cool that week. It's a sound crisis that intrudes my thought process on the daily - I speak from experience when I say once you hear "Eye of The Tiger" three or four times a day you are bound to start living and breathing it - so I would hereby like to propose an alternative.
If you want a fun ringtone (I know most phones come with awful options because companies want you to pay for rings), you can create unique and slightly-less-repetitive ringtones at Mixxer.com. The site helps you create and download your own tones, it's free and you don't even have to register.
All you have to do is upload your MP3 file, clip your favorite 30 second hook and send the ringtone to your cell phone. Check out the site for a full guide.