Five Card FlickR - Tell a story with 5 photos. (If Flickr is blocked for your students, you can use this same idea with another source of images. Try the American Memory collection for historical fiction or a site like Morguefile.
Six Word Memoir - Have students write one at the beginning of the school year at the middle school level instead of the same old "get to know you" activities. Could also be a great kick-off to Poetry Workshop.