An adaptation of Charles Dickens’ classic tale A Christmas Carol was performed on the 20th December 2012 in Chicago. This was not your average version of the famous tale, but A Klingon Christmas Carol.

Klingon’s obviously do not celebrate Christmas, but they do have a “Festival of the Longest Night,” ram nI’ tay.
A Chicago based theatre company used the language created by philologist Dr. Marc Okrand, who was hired by Paramount Pictures to develop the language for movies and the television series.
The Klingon Christmas Carol is the first play to be performed entirely in the Klingon language. It was written by Christopher Kidder-Mostrom and Sasha Walloch and was originally translated by Laura Thurston, Bill Hedrick and Christopher Kidder-Mostrom
SQuja’  has no honor, nor any courage. Can three ghosts help him to become the true warrior he ought to be in time to save tImHom from a horrible fate? Performed in the Original Klingon with English Supertitles, and narrative analysis from The Vulcan Institute of Cultural Anthropology.
The Charles Dickens classic tale of ghosts and redemption adapted to reflect the Warrior Code of Honor and then translated into tlhIngan Hol.
Despite a tiny vocabulary of just 2,000 to 3,000 words, Klingon is the most spoken fictional language in the world, according to Guinness World Records. And in October saw a Swedish couple tie the knot in a Klingon wedding ceremony at Destination Star Trek London.

Sources Klingon Christmas Carol, Reuters