My friend, The Oracle sent me a package to my office the other day. I was so surprised that 1. I got presents, and 2. The Oracle ordered the present from ThinkGeek! (I still remembered when I first saw the ThinkGeek catalog in The Oracle's home and commented how cool the products were. And that was at least 1 year ago :))

And let me show you what I got:

A Robot Tissue Box- cute and practical!

A coffee mug with all the well-known formulas. I kept looking at the formulas and I couldn't find the one for calculating the NPV. :)

A two-dimensional pendulum with magnets which can create chaotic motion.