Forget that I went to high school with one of the two guys responsible for the formation of the clock and just order one (or two, like I did).  The math geek in everyone (however small) will spend the rest of the day happy.

Sweet pyramidal neuron

I’ve always to get a tattoo of something. When I was in high school, I almost pulled the trigger on a MC Escher print, but pussed out at the last minute. I am uber-close to getting a neuron somewhere.

There’s a whole gallery of science tats here for those who are interested.