“The “Water Light Graffiti” is a surface made of thousands of LED illuminated by the contact of water. You can use a paintbrush, a water atomizer, your fingers or anything damp to sketch a brightness message or just to draw.”
I’d write ‘FUCK OFF’ on it and squirt anybody who came near it with water. THIS IS A STICK UP SHEE, 50s New York gangster style. It’s cool though, isn’t it?