Do the Red Sox, Astros, and Orioles sell game used baseballs throughout the season?

I am asking because each of these teams will be using a commemorative baseball for all home games during the 2012 season.

Five teams total have introduced commemorative baseballs for 2012 home games. The Astros and Mets will have 50th anniversary (franchise) baseballs. The Red Sox (100th), Dodgers(50th), and Orioles (20th) will have baseballs commemorating anniversaries of their stadiums. There still may be some others like the Marlins inaugural season, but they haven't been announced yet.

I have access to the Dodgers and Mets so any information on any of the other teams is appreciated.

Photos can be found at bigleaguebaseballs.com (not my website)