On this website
you can buy yourself a T-Shirt. You can also buy it for someone else. There is also an option of not buying anything at all and that is, of course, free of charge, however I would recommend the first two options.
The merch is very simple, these are just basic pieces of clothing with some meme stuff I designed, sometimes relating to my stupid cat Charlie. These are made in UK, not that it makes them anything special, I just thought maybe you'd appreciate that information.
...Oh and there are art prints too!