You could be the next Crazy Frog
Share the profits from your spawn
A new service from Quepasa allows users to upload their own ring tones, and share in the revenue generated by selling them. Anyone can upload their masterpiece, once they’ve paid the requisite $4.99 registration fee.
Quepasa is a US internet portal aimed at the Hispanic community and providing the usual mail, messaging, forums and content provision including video and mobile phone ringtones.
Allowing anyone to upload their own ringtone should provide them with lots of content, beyond the standard MIDI fare they are already offering, and by charging customers a registration fee they can't lose.
From the prose on the site you might think you can’t lose either:
"You could make money with a single ringtone, but you may make even more if you upload five or ten."
...or you might just find yourself five dollars poorer, who knows.®