Attack kittens. I gave my nephew a shirt with a kitten like a fire breathing dragon attacking a city.
I found these as shirts at Amazon. Little monster kittens like King Kong and the Kracken.
The Mountain Krakitten Adult T-Shirt, Grey, Small
The Mountain Men’s King Kitten, Gray, Small
Fun, but not very affordable. Why are so many things printed on T-shirts. People only need so many shirts after all. They don’t wear out or need to be replaced like pens, paper, etc.