Acrylic colour is not only perfect for painting: you can also sprinkle it on paper in various ways. You can use your fingers to stroke a toothbrush or a harder paintbrush. Additionally, you can put a small amount of water into an almost empty bottle of acrylic colour and stick the cap with some tape. Then you pierce a tiny hole through the tape and turn the bottle around. Now you can put beautiful and colourful splashes on the paper.