When Marge shows Bart his merchandise and gives him one of the figurines, Maggie has no pupils.
If Bart became as famous as he was, it would be reasonable to assume the Simpsons would become rich, but this is never addressed.
Lisa visualizes getting a Nobel Peace Prize, depicted as a pointed statuette. Nobel Prizes are actually circular medallions.
In Lisa's fantasy, Bart mispronounces Pulitzer.