Creative costumes are great and all, but in my opinion, the best thing you can do for a work Halloween costume is to dress up as one of your co-workers! Check out Christine, who came in dressed up as Ian! She gets awarded some pretty serious "I have big balls" bonus points because Ian was her boss!
Hahaha. There's nothing better than a party with your co-worker that gets to the point where all inhibitions have completely vanished. Christine and Ian are singing their hearts out and Rob's just feeling it and dancing. Awesome.