with a new mascot named "Mettle the mule" that was a living animal that would parade along the foul lines prior to a game. In 1992, long time Mets fan, Lois Kaufmann of Queens, New York, wrote a compelling appeal for his reinstatement and asking the Mets to resurrect the mascot. The team did not act quickly or grant Lois her request to be Mr. Met. However, in 1994, they did follow her advice and revived Mr. Met as part of a promotion with Nickelodeon. After a long absence, Mr. Met was quickly re-embraced by New York Mets fans and has since remained a constant part of the franchise. On April 14, 2002, the Mets held a birthday party for Mr. Met at Shea Stadium. It was attended by costumed mascots from all around Major League Baseball and by Sandy the Seagull, mascot of the Brooklyn Cyclones, a Mets farm team. In the 2003 season, first baseman Tony Clark was the first Mets player ever to wear #00, Mr. Met's number. In June of that season, he switched to #52 when Queens schoolchildren asked him what had happened to Mr. Met. On September 14, 2007, Mr. Met was elected into the Mascot Hall of Fame. Beginning on August 14, 2009, throughout their series against the San Francisco Giants, the Mets wore throwback jerseys featuring a Mr. Met patch on the right sleeve. Currently, Mr. Met can be seen at Citi Field during and after games. He is usually found near Mr. Met's Kiddie Field where fans can meet and pose for pictures with him. He can be hired for special events and private parties. Mr. Met is also featured on Mets Money, which are $1, $5 and $10 denomination gift certificates accepted at concession stands and souvenir shops at Citi Field. The design is somewhat reminiscent of standard U.S. currency, but instead features images of Mr. Met attired and posed similarly to the historical official (Washington, Lincoln or Hamilton) featured on the respective bill. The second version of the Mr. Met head is now on display at the New York Mets Hall of Fame and Museum at Citi Field. In 2013, the Mets introduced batting practice caps featuring Mr. Met on the front. In 2014, a Mr. Met sleeve patch was featured on the Mets' blue alternate home and road jerseys. In 2015, a far more detailed Mr. Met backstory