But there's a catch -- which autograph you get is a mystery.
The San Diego Padres announced Thursday that the Padres Foundation and players' wives will hold a "mystery bag" fundraiser this weekend, with proceeds benefitting Operation Smile, a nonprofit organization providing free surgeries to repair cleft lip, cleft palate and other facial deformities for children around the world.
Each mystery bag sold (while supplies last) will cost $40 and will include an autographed ball. The fundraiser will take place from the time gates open through the third inning Friday and Saturday, and once a bag is opened, it cannot be exchanged for another bag.
Tables will be set up inside the Home Plate and Gaslamp gates, as well as at guest services on Park Boulevard. Cash and checks made payable to the Padres Foundation will be accepted.