b0ing b0ing pointed me to this page, describing it as suggesting you email all your stolen .mp3’s back to the RIAA:

Stealing is never OK. But, it was just too easy. So we told ourselves we were just “sharing” the music, because everyone knows that sharing is a good thing.

But then we learned what we were really doing. We heard our favorite recording artists telling us that our “sharing” is really shoplifting and piracy. We were stealing from the musicians and singers we love!

That was when we looked at each other and said: “No more! It’s time to make it right by giving back what we stole!” And that’s just what we did! We sent back all the MP3’s we’d illegally downloaded. Everyone one of them!

Won’t you join us in sending them back?

Send them back! Right back to the Recording Industry of America Association, the industry association that helps our favorite artists keep on making the music we love.

But you don’t have to be content with merely emailing them the .mp3 files. As the site suggests, you can snail mail or fax them a printout of a hex dump of your files instead. The site was created by Parents and Their Kids against Stealing™, a group “dedicated to helping kids feel better about themselves through File Sharing Abstinence.” And, don’t forget, they remind you that

“Unauthorized use of this page, its contents or the concept of sending back MP3s is forbidden without express written permission from Parents and Their Kids against Stealing™”