Too much caffeine makes me all jittery. This will do.
A plain silver bell is boring. On your left! ding ding
Any dapper Time Lord wouldn't be caught dead without one.
Available at: Shapeways http://www.shapeways.com/model/149334/giraffe_ring.html?gid=ug2007 ($20)
Make sure to keep this hidden in your desk drawer until after lunch. Hungry coworkers are ruthless.
It's okay to live, sleep, eat and breathe gaming. As long as you do it in style.