marl makes em for me for cons and stuff, we have a button machine from buttonmakers.net and it’s held up through many thousands of buttons so far! we don’t toss many at all
if you want some details on paper and ink and blah blah stuff, email marl at our store email melanie@papayakitty.com and i know he’d be happy to answer questions i havent been thoughtful enough to think of here in this response