Here you can make your own pins, apparently it’s in Poland.

Also, it seems the EU parliament has its own shop, but there isn’t much.

I found those while looking for shops that aren’t etsy, so I can’t say anything about the quality! However, you can try finding stuff on etsy, some seller have their own shop + website :)

And their chocolate is just so, so good.

Upvote for visibility. Good catch!