Enamel Pin Company Press Nice
Brand used to be Chesty, and will include domain (shopchesty.com) for that as well as this one. I started this October 2016 and did well over $3,000 in sales on Shopify and Etsy.
I started another Shopify store and it has taken off, so I haven't focused on this at all.
Included in sale: Domains (2) All design files for pins and shirts