To date this is what I have as part of my Black Sabbath collection
Mob Rules signed album sleeve by Ronnie James Dio backstage at Birmingham Academy 27/05/2008.
Black Sabbath - The Dio years album signed by Ronnie James Dio backstage at Athen's Rock Wave Festival in Greece on 01/07/2007.
Dehumanizer album sleeve signed by Ronnie James Dio & Vinny backstage of Rock Wave Festival Athens, Greece 01/07/2007.
Black Sabbath : Live at Hammersmith Odeon signed by Ronnie James Dio backstage at Birmingham academy on 27/05/2007.