Once you go Black...

...you might move up to Green. Found by FMD Crankmonkey on Luxist:

In September, Johnnie Walker Black Label will release a special collector's edition bottle honoring the famed Scotch's 100th anniversary.

Celebrating the brand's enduring achievements in blending, innovation, and quality, the limited edition black glass bottle contains the signature 12-year-old whisky and will retail for $50.