I am taking my serious teaching hat off here for a moment and just recommending a great site to access hundreds of colouring / coloring pages depending if you speak the queens language.
There is something for all subject areas and occasions. These are a great outlet for your creative students to do either at home or as a fast finishers task in the classroom or simply something to fill in that last half an hour on a rainy Friday afternoon. I am sure younger students will really enjoy this.
Access this site here.