My adviser received a promotion to full professor, so my group tinfoiled his office. It took 12 of us six hours, and almost 3000 square feet of aluminum foil. We individually wrapped books, computer cables, ceiling tiles, etc. The effect is best seen via this Quicktime VR panorama. I really recommend you take a look at the Quicktime VR view of the office, it really captured the ambiance wonderfully. Also, when the sun goes down in the late afternoon, the office gets to be painfully bright.

We also installed a new Port-a-Potty door and a congratulating plaque. Sharp eyed individuals may recognize that his "chair" in the office is an aluminum foil covered toilet, which was purchased for him when he received tenure several years ago. (He has a long history of toilet related pranks that is too involved to explain here)