Declare your work area a separate nation.
Start by making a flag out of post-it-notes and a pen. Write a national anthem. Set up an inter-cubicle ballistic missile defense system out of elastic bands. Build a standing army out of paper clip sculptures and use white-out to denote rank.
If someone nearby is equally bored, inform them they are pressing onto your borders and their hostilities will not be tolerated unless treaties are signed (it is always best to negotiate from a position of strength). Send a platoon of your finest paper clip solders as representatives, along with a short list of issues that need to be discussed. Start printing money. If they declare independence as well, you cannot afford them to become a superpower.
If no one else nearby is equally bored, print off some propaganda posters for your work area. MS Paint is not recommended, but it is on occasion hilarious. Create a blog to update the citizens of your nation of the local/national news.