This is a great site to help with ideas for writing. The genie helps come up with a what if question. Students read the question and write. If they don't like the question, all they need do is click on the genie to get a new what if question.
Here are some of the questions listed. Cute and fun!
What if an opera singer was saved by a huge kid? What if a monkey tackled a recipe? What if a millionaire lost a job because of a school?