GEICO | GEICO Ringtones - Download free ringtones to your phone
http://www.geico.com/about/commercials/music/ringtones
"Envious of the Gecko's boss? You've seen the commercial, now you can have his "worst" ringtone, a snappy sounding ringity-ding-ding-dingy-dong, on your phone. Download the ringtone below.
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Old_Spice.wav (audio/x-wav Object)
http://www.earthstation1.com/TVWavFiles/Old_Spice.wav
lakedc_pcmupstream.mp3 (audio/mpeg Object)
http://808hi.com/audio/lakedc_pcmupstream.mp3
"V.92 PCM upstream handshake mp3 audio"
MiniTones
http://software.palminfocenter.com/product.asp?id=11197
"This small freeware app allows you to select a MP3 file and add it to your ringtone list in Sounds."
Boing Boing: TMBG ringtone: "Call connected through the NSA"
http://www.boingboing.net/2006/05/23/tmbg_ringtone_call_c.html
"They Might Be Giants is offering up a few ringtones for purchase."
Make your own Ringtones
http://www.mrbass.org/ringtones
Remember to cut it down to mono. With this capability, I'm surprised there's a ringtone industry whatsoever.