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.

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

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.)