Freecad Merch / Webshop

I mean why not, I'd wear it especially on fairs. (mostly to piss off the Solidworks and Autodesk Vars :) )_
Blender example:
https://store.blender.org/
There are complete companies who can do this for someone, but they will probably take a big chunk of money from it.
I am not sure who Blender uses, I assume they do not print there own t-shirts.
I also have no experience with merch, so cannot really help in that direction.
But maybe start with a sticker until the workflow flows.
The book from issue 9 is also merch I realize, but I was more thinking about the stickers and t-shirts.