This cloth napkin is one idea for the black cloth needed in The Big Story of Lesson 1 for both Preschool and Elementary Curriculum. You can use the link in the pin to purchase from amazon, or you can purchase from your favorite store. You could use felt instead or even a sheet of black construction paper!
Cut Jonah out of black construction paper, then have kids cover sheets of contact paper w/small squares of tissue paper. When the sheets are completely covered, put Jonah on top & cover the whole thing w/another sheet of contact paper, sticky side in. Then, glue the contact paper with Jonah in the back behind blue construction paper w/fish shape (I'd cut out a whale...) cut out. When you hang it, with Jonah on the backside, he only shows up inside the fish when the sunlight streams thru.