The B-2 Bomber was developed by the Lockheed company, and is painted in a toxic, but radar deflecting paint. I actually got a chance to see one on its way to the Nascar Chicagoland Speedway flyby. And it actually flew right over me!!!!
Very cool lego creation!
Please do note that the B-2 was developed as the ultimate in a long series of flying wings developed by Jack Northrop and Northrop Aircraft. (In fact, it was chosen over the competing design from Lockheed. Lockheed made the F-117A "Stealth Fighter", not the B-2 "Stealth Bomber".)
Also, it is called a Flying Wing because there's no fuselage or tail -- just, well, a flying wing! (Less drag for the same payload.)
And the development team considered it much more like the Bat Ray (sea creature) than an airborne bat. The Bat Ray is the same color, and a very similar shape. It's jowls even look like the B-2's landing gears in the "down" position, and its body & eyes resemble the cockpit & engine "bumps". (Unfortunaely, the Batray nickname was not chosen when congressional politics entered and the Air Force named it -- "the Spirit"...)
See here: http://en.wikipedia.org/wiki/Bat_ray
Click on the photo...