Obliteration room by Yayoi Kusama, is an interactive art work exhibited at the Gallery of Modern Art in Queensland, Australia. She created the blank canvas of a stark white home interior and then invited children to leave their mark on it with colorful polka dot stickers.
via: Laughing Squid
Daniel Eatock makes works by balancing sheets of paper on the nibs of multiple felt tip pens. The paper slowly wicks the ink to make a scattering of colour deposits.