Up until now I've had a lame old cellphone from the Dark Ages on which I couldn't do anything aside from make calls and text. It used minutes, and it lacked any special features such as voice recorder, camera, and the ability to download anything, including ringtones. Now that I've purchased a new phone that's relatively modern, however, I've downloaded craploads of new ringtones; I've even assigned a different one to a given phone number.
Most of my ringtones are based on Zelda: Item Catch tune, Wolf Link howling, Zelda Alert, and Navi. I've assigned each one to texts only, though, as I hate it when people assign lengthy, complex ringtones to something as simple as an incoming text message. All of my other ringtones are songs, and are assigned to phone calls.