The Daily Mood Flipchart:
It's like your Facebook status, analog-style! The Daily Mood Flipchart has 47 moods to choose from, each with its own smiley along with a snarky defition, fascinating facts, and sample sentences.
Be kind to your office mates - warn them of your mood before they enter your cubicle. If they see that you're grumpy and they bother you anyway, then they do so at their own risk!