iodized oil and complete necrosis on contrast-enhanced wideband harmonic gray-scale sonography.
This option can be used to optimize output on level 1 gray scale postscript printers.
The Nook features a 16-level gray scale display featuring E Ink technology for crisp, clear and glare-free reading, even in direct sunlight.
There is also the black and white Levi's theme that has no model present; it is just the word "Levi's" on a gray-scale background.
Otherwise, consider leaving it gray scale and letting the details be what captures people's interest.