"The Onion" is home to well-written, fake news articles about contemporary issues and people. It's a great way to introduce your students to satirical writing and to point out that not everything you read is true. Have your students read an article from "The Onion" and then write a piece of their own.
This is most simple of all the tools mentioned here. It also does not have many features yet you can use it to create a newspaper for your class. Just fill in your information and Fodey generates your newspaper.