Try Ebay............just type in the year, team name, etc.
It looks like a baseball with a lot of players autographs on it...what else..
Some do; others don't. It depends on the time of day and where they are.
Meet them in public. Autographs, mascots?
you have to be more specific than that, my friend
The cameraman uses special wipes to clean the player's autographs off.
http://www.sportsecyclopedia.com/nl/atlbraves/atlbravesimages.html
Mark Allen Baker has written extensively on the subjects of baseball history, genealogy, and collectibles. He has authored numerous books, including "Gold Mine: The Pioneer Journal of a Camera-Toting Baseball Treasure Hunter" and "Baseball Autographs: The Ultimate Guide." Baker is a recognized expert in the field of sports memorabilia and has contributed to various publications on the topic.
Sentimental
They usually sign them around the place the enter the arena at.
The Player Entrance Near The Hotel
They watch practice, many also hope to meet players and aquire autographs.
www.ebay.com