JB in Charcoal

I was chatting to a friend (fellow messageboarder) and realised this has been hanging in my home for over 20 years now.
Wouldn't it be fantastic to get it autographed?
It was a bit big to tuck under my arm at A Day on the Green or Barossa Under the Stars.
Maybe I should pop it into my hand bag for Thebby next month!?
Any ideas?
Regards Cheryl in Adelaide
PS Has anyone else got a charcoal drawing of JB?