I sent Brooks Robinson two cards and a few index cards as well as a donation.
He signed both cards and added the "HOF 83" inscription.
The turned out great!
I asked that he personalize each index card to my boys and add his nickname "Human Vacuum Cleaner" and he did!
My second return was a 4 x 6 photo that I had gotten signed earlier this year by Buck Showalter. I sent it to Jason Alexander (George from Seinfeld) and he signed it as well. If you remember, George worked for the Yankees during a couple of seasons of the hit tv show.