Seattle Mariners mascot the Mariner Moose races a small vehicle along the outfield wall before the team's opening day baseball game against the Cleveland Indians Thursday, March 29, 2018, in Seattle. (AP
The Seattle Mariners' mascot, the Mariner Moose, greets a young fan during a baseball game against the Texas Rangers Sunday, May 7, 2017, in Seattle. The Mariners won 4-3. (AP Photo/Elaine Thompson
Long before Mariner Moose, there was Spacie the Space Needle – KIRO 7 News Seattle
July 4, 2016: Houston Astros mascot Orbit eats hot dogs during the Major League Baseball game between the Seattle Mariners and the Houston Astros at Minute Maid Park in Houston, TX Tim
The Seattle Mariners' mascot, the Mariner Moose, greets a young fan during a baseball game against the Texas Rangers Sunday, May 7, 2017, in Seattle. The Mariners won 4-3. (AP Photo/Elaine Thompson
5 juin 2016 : Oakland Athletics Stomper Mascotte Mascotte Houston Astros donne une orbite un maillot pour son anniversaire avant le match entre la Ligue Majeure de Baseball avec les Oakland Athletics
Long before Mariner Moose, there was Spacie the Space Needle – KIRO 7 News Seattle
June 05, 2016: Orbit hangs out with many of his mascot friends in town for his birthday before the Athletics at Astros baseball game at Minute Maid Park, Houston, Texas. (Photo by
The Seattle Mariners' mascot, the Mariner Moose, greets a young fan during a baseball game against the Texas Rangers Sunday, May 7, 2017, in Seattle. The Mariners won 4-3. (AP Photo/Elaine Thompson
Seattle Mariners mascot, the Mariner Moose, in action during a baseball game Monday, April 19, 2010, in Seattle. (AP Photo/Elaine Thompson Stock Photo - Alamy
The Seattle Mariners' mascot, the Mariner Moose, greets a young fan during a baseball game against the Texas Rangers Sunday, May 7, 2017, in Seattle. The Mariners won 4-3. (AP Photo/Elaine Thompson