It’s been around for a while, but I only recently came across Storybird – a really beautiful site with ready-to-use graphics to create your own short stories. It’s a great way to get students engaged in writing their own stories and sharing them with the rest of the class. This works well for practicing narrative tenses or descriptive adjectives.
You can see how to get started with Storybird by watching the video tour here. And there’s a great section for teachers which shows you how to sign students up without email addresses and assign and grade work here.