So, being surrounded by people from India, I asked one of my other coworkers what the image was (the sacred cow being completely clear to me). "It's a Shivaling," she said. "Instead of having statues of the god in the temple, we use this form instead to represent him. You pour milk into the little saucer it's sitting in."
Oh, yeah. Shivaling. Shiva Lingam. Holy Statue of a Penis, Batman! (I bet the dude who's got the ten commandments posted in his cube is going to LOVE this postcard ...)
I thought it was funny, though, that the proper method of worshipping at this statue involved immersion in a cloudy white liquid.
(They have glow in the dark Ganesh shirts, too, so I think I may be placing an order with them some time soon ...)