Because of my statistically improbable stature, it’s really hard to find clothes that fit me. So, most days I wear the lowest common denominator of all clothing styles, a t-shirt. And if I’m wearing a t-shirt, it might as well be Extremely On Brand CP and have some obscure mathematical motif on it.

Good maths t-shirts are hard to come by, so I’ve made four of my own.

I haven’t let lack of illustrating ability get in my way, and I’m quite pleased with how they’ve turned out.

I of course made one with a big Aperiodical logo on it, and then tried a variety of themes: a reproduction of an image from H.E. Dudeney’s Amusements in Mathematics; my barely justifiable matrix joke; and a quip about the futility of mathematical inquiry.

The shirts pictured above were printed by Streetshirts, who I’d recommend if you’re in the UK and want to print your own designs.

If you want to wear one of my designs, as some people on Twitter have unexpectedly said they do, you can order them from the shop on Redbubble that I’ve just set up. Thanks to the way Redbubble works, you can not only have my designs printed on a t-shirt, but also on a bewildering array of items ranging in size from a mug to a duvet cover.

I think that’s as close to official Aperiodical merch we’re likely to get in the foreseeable future. Katie made some fridge magnets last year that we’re slowly handing out to people who’ve helped out with or written for the site, like Blue Peter badges.

Do you have a favourite mathematical t-shirt? I’d love to see what else is out there!

Buy my t-shirts, if you want: my Redbubble shop.