NEW New York Mets Mike Piazza #31 Boble Head MLB Baseball Collectible Souvenir Citi. 2.5" x 2" x 7. The item "New York Mets Mike Piazza #31 Bobble Head MLB Baseball Collectible Souvenir Citi" is in sale since Monday, April 2, 2018. This item is in the category "Sports Mem, Cards & Fan Shop\Fan Apparel & Souvenirs\Baseball-MLB". The seller is "greatthingsforstrings" and is located in Bronx, New York.This item can be shipped worldwide.