I wrote a story a couple of years ago and made it into a sketch dummy (a picture book mock-up). I love the process of putting sketches with the words. It helps me understand and revise things like the story's pacing and setting changes.
My old dummy was called, Jackson's Magic Jacket. It was about a little boy's obsession with his favorite piece of clothing. This month I've decided to make it about a rabbit and call it Jack's Jacket. The story has changed enough for me to delete some scenes and add a few more. Here's a page spread that didn't exist in my last draft.