What the title said, pretty much.
I fired up GarageBand and tried to reproduce several of the default iPhone ring tones on my acoustic guitar. I stayed true to the key and tempo of the originals as closely as I could.
Feel free to download/share/distribute.
These are .m4r ringtone files, ready to be synced with an iPhone. Safari will play them inline if you just want to preview.
Do, or do not. There is no why.