 On April 9 , 2009 , the United States Postal Service unveiled a series of five 44 cent stamps featuring Maggie and the four other members of the Simpson family . They are the first characters from a television series to receive this recognition while the show is still in production . The stamps , designed by Matt Groening , were made available for purchase on May 7 , 2009 . In a <unk> poll , Maggie 's stamp was voted the most popular of the five . 
