Jackson Pollock was an American painter.
He was famous for his technique of pouring and splashing paint onto a horizontal surface, enabling him to view and painting his canvases from all angles.
Here is one of Pollock's drip painting:
A big piece of paper.
Mix the paint with water and put it in the balloons. Don’t stretch the balloon, keep them small. Tie the balloons. When you are ready to use them, make 2 or 3 small holes. Squeeze the balloons over the paper.