Also check out these related sites:
Why buy one from Mark for 200 bucks when you can an identical one from Eric Clapton for 500? http://wearyourmusic.org/store/default.aspx?pageType=product&id=0adba849-6e06-4864-8e77-7300d9eaa8bdSeriously, if I really wanted to support one of the charities, I'd rather give the money away instead of getting an "original" (right) piece of jewelry.