Like so many mathematicians, I have lots of pi stuff, which is a little embarrassing now that I’m so overtly on Team Tau. (Eesh.. how nerdy do you have to be to not want to wear a Super-Pi t-shirt in public … because it’s the wrong convention for naming the circle constant?)
My favorite, though, is that shirt … you’ve probably seen one … with the digits of pi formatted in the shape of pi. (I’ve also seen the same for phi, the golden ratio, but I don’t own that.) I wish I had the analogous thing for tau, but I don’t think anyone’s made that yet.
As a first step… here’s this, which I whipped up with Mathematica.
That was dashed off pretty quick, over lunch; I plan to make some prettier versions, including a mathematica notebook to automatically do the same thing for an image of your choice.