This is a fun and very messy project that gets children experimenting with lots of different materials. I first prepare lots of paper/card strips for them to experiment on. It can be circles, squares or whatever you fancy but I think long rectangles look like good 'sample' pieces. Then the mess begins! I have boxes full of paints, sand, coffee beans, foil, inks, fabric, pastels, cornflakes, beads, matchsticks, glue, string etc. Anything you can get your hands on! Get the children to experiment with everything - mixing ink with sand or crushing pastels, cornflakes and glue. Some will work, some will not. The best part is you get some amazing textures, colours and mixed media samples at the end to discuss.