I've got an autographed ball of his.
Ebay auction closes; a pair of pink knickers autographed by Billy Boyd, all proceeds to go to Jack Boyd's Baby Grove.
Another aspect that adds value to baseball cards is whether or not they are autographed.
Cards which have been personally autographed by the players are much more valuable than those created by manufacturers as a part of 'autographed sets'.
Charm City Cards sells used and new sports cards, including cards that are graded and autographed.