A few years ago, while doing a bit of a family history research project (Knuth was my father's PhD advisor at Stanford), I stumbled across a rather awesome t-shirt design. May I humbly submit "Knuth is my homeboy" as my entry to the CompSci t-shirt contest. (not my own design, to be clear, I just came across it on the internet)

https://geekz.co.uk/shop/store/show/knuth-tshirt.html

And here is a shot of the recursive shirt in action: https://laughingsquid.com/jacob-appelbaum-donald-knuth-demon...