Some office prankster named Mike finally got pranked while away on vacation.  He got a complete office rebuild, completely out of cardboard. 

Many more pictures in the links.

Here’s mikes Cardboard office.

http://www.geekinvasion.com/mikeprank/index.html

And, of course, Mike upon returning to work and seeing his office.

http://www.geekinvasion.com/mikeprank/reaction.htm

Ed. Note
(Yes, this gets the sharpie category, as the windowboxes, computer, telephone, cabinet, and chair were all accented with permanant marker, and theres some odd statistic that I don’t know, and can’t quote, that says is was probably a sharpie anyway.)