Slau, in New York City, composed and produced "If Every Day Were Christmas," which involves nearly 100 podsafe music artists (including me) in a charity recording, with any income—traditional radio and TV play, revenue from sales through iTunes or wherever else it might be available for purchase—going to UNICEF.
The original idea to do that came from podcasting co-inventor Adam Curry. You can find out more at PodSafeForPeace.org (once that site is up), or in Adam Curry's debut on December 2, 2005. Please donate to UNICEF too!
If you're a podcaster, get the song at the Podsafe Music Network, play it on your show, and report it, then encourage your listeners to donate too. Tag it podsafeforpeace on your website as well. Here's a list of some of the podcasts that have played the track already.