Though I recall a member posting a blog asking about this a while ago, I could not relocate it for my purpose in this discussion.
It can be nice when one stumbles upon a musician's shop (via their website), to see that they are selling their autographs. Stephen Duncan has referred to this as a 'win-win' situation. I figured this could grow as a wee database for listing those musicians who partake in this.
I recently recieved a couple press photos signed in ballpoint from John Mayall's website (http://www.johnmayall.com/merch.html). I am also aware that you can purchase signed CDs from Peter Noone of Herman's Hermits(http://peternoone.com/store/). John 5 ( formerly Marilyn Manson, Rob Zombie guitarist) sells various items signed, with an option to dedicate.
So, does anyone else know of this being done by other musicians?