In Making a Rainbow Mary did not bring out her weather machine. She had fun making rainbows without her machine. Now that you’ve had fun making your own rainbows and writing about how you did that, it’s time to write a fun story about making rainbows.
Create a story where someone has to make a rainbow and how they did it. Use your imagination and come up with a crazy way to make rainbows that does not depend on light. Or you can write about an unusual reason why they have to make a rainbow. Whatever you write, have fun.