Here's a pretty cool piece of tech. It's a screen made of dry fog, which means it's a screen you can walk through. More officially, "Using nothing more than tap water and ultrasonic waves, FogScreen projection screen machines employ a patented technology to create a smooth foggy airflow that captures images just like a screen. You can walk right through a FogScreen projection screen without getting wet. The microscopic fog droplets actually feel dry to the touch, just like air." Wonder if you can combine it with Reactrix.