No, not NYYs "mancave". http://www.cnn.com/2014/07/17/business/worlds-darkest-marterial/index.html?hpt=hp_c3 Absorbs 99.96% of all visible light that hits it, rendering surface contours and depths completely indiscernible. Of course, the CIA has been using this stuff on their helicopters for years.
I swear some of the fireworks I saw this year seemed to have a combination of white and black exploding dots.
Not exactly this stuff. More radar obscurance than visible light obscurance. I actually helped out in researching carbon nanotubes for obscurance way back in 1998 / 1999. I was an undergrad and largely didn't know what I was doing. But this was the idea.