Every site I can find is like a teespring or redbubble shop that sells $30 shirts that say shit like "i just want healthcare hun " or just has general random tee shirts so you might find some weird chud shit next to the Antifa Supersoldier shirt you're looking at.
Looks like they made one just for us
https://spacedoglaika.com/collections/shirts/products/practice-safe-hex-magick-witch-t-shirt