This is a really fun project that can be used when looking at graffiti artists such as Banksy. You can buy graffiti stencils in books from most art stores. They usually come with plenty of stencils that can be ripped out (they have perforated edges) and used over and over again. I’ve had most of these stencils for years and they are still going! Then the pupils use sponges to apply the paint over the stencil and between the gaps to your chosen background. I usually photocopy a brick print onto A2 or A3 recycled paper.