Cubicle Wars

So, whenever someone in my work group of friends is out of town on fun or business my Young Professional Colleagues and I routinely invade their cubicles, leaving random presents hanging up.

Examples of our cubicle wars include:

• Filling every drawer and cabinet with 50lbs of orange shredded paper
• Leaving a wrapped present from a store called Hubba Hubba.
• Hanging up a random poster that takes up the entire wall.
  
• Leaving a cheap talking frame permanently attached to a cube wall with a non-work appropriate recorded message.
• Hanging up a subway ad for drug addiction on the outer wall of the cubicle
  

Now, these, whilst funny, are no where near as great as the pranks we could be playing on one another. So, blog readers, I implore of you - what's a good prank to pull on someone's cube?