Santa's Workshop Meaning

(countable, idiomatic, by extension) A busy, productive large or small work environment, populated by dedicated workers.

Example: 1983 Feb. 11, Robin Herman and Laurie Johnston, "Frenzied Finish For Trump Tower Atrium," New York Times (retrieved 15 May 2014):
  Like a Santa's workshop for the rich, the huge shopping atrium was jammed with frenzied workers pushing to finish by Monday's opening.
1999 Feb. 21, Michael Isikoff, "The Right Wing Web," Newsweek (retrieved 15 May 2014):
  An acid-tongued blonde who writes a legal-affairs column for the right-wing weekly Human Events, Ann Coulter . . . laughed. "There are lots of us busy elves working away in Santa's workshop."
2001 Jan. 8, Aparisim Gosh, "Trapped in the System," Time (retrieved 15 May 2014):
  U.S. consumers . . . will look to China, as they have since the country a decade ago became a regular Santa's workshop for toys, clothes and electronic gizmos.
2012 June 13, Deborah L. Jacobs, "How My Book Became A (Self-Published) Best Seller," Forbes (retrieved 15 May 2014):
  Next week 500 books not shipped elsewhere directly from the printer will arrive at our house. . . . At that point my Brooklyn brownstone will turn into Santa’s workshop as I package courtesy copies for all the sources who helped and people whose photos appear in the book. I will also send out review copies.