The “Water Light Graffiti” is an interactive surface made of thousands of LED illuminated upon contact with water. You can use a paintbrush, a water atomizer, your fingers or anything damp to sketch a brightness message or just to draw. Water Light Graffiti is a wall for ephemeral messages in the urban space without deterioration. A wall to communicate and share magically in the city. – Digitalarti Artlab

via www.rojaksite.com