One of my favorite literacy lessons with kids is exploding their writing. I tell them that if they want it to pop with the reader, they have to explode it. Telescopic Text is a great example of that. This one little website does a nice job of turning a three word sentence into a story worth hearing. It is a wonderful visual for the kids to see up on the projector. Keep clicking on the grayed out words to see just how far you can blow that baby up.
Consider letting them start this in a Google Doc or a wiki and watch it grow.