Here you go:

or maybe

if you really want to capture that christofascist look

I did have a bit of a scroll to see if anyone had made a relevant graphic design, and found this: https://www.nicklacke.com/shop/p/punch-a-nazi-screenprint

but no t-shirts, so I guess it’s there for you to do lol

(E: I just realised this might need clarifying - I don’t mean put this person’s art on t-shirts, but rather that there is very little “punch a nazi” graphic art out there, so you could take inspiration and make your own without stepping on any toes)