So they painted a small metal box with Black 3.0 acrylic paint, attached an earth lead to it and hung a $1000 price tag on it. It's like science fiction :wink:
"It's so... black!" said Ford Prefect. "You can hardly make out its shape... light just seems to fall into it!"
The blackness of it was so extreme that it was almost impossible to tell how close you were standing to it.
"Your eyes just slide off it..." said Ford in wonder.
Restaurant at the End of the Universe by Douglas Adams