Here's a pretty poster of Sita, wife of Rama, who is kidnapped in the Diwali story by the evil Ravana. Print it for display or cut her out to use as a puppet, perhaps.
Here's a printable poster of a diya, the old-fashioned oil lamp used to light the way back home for Rama and Sita in the story of Diwali, and traditionally lit during the Hindu Festival of Lights to welcome the goddess Lakshmi into homes.
Here's a pretty printable poster of the Hindu goddess Lakshmi, traditionally encouraged into houses at Diwali, the Hindu Festival of Lights. She is often seen carrying lotus blossoms and showering coins, as she is here.