I used to sell my items in an Art Gallery and a few of my items made it overseas so when I started on ebay, way back when, I sold everything I listed and was limited by my ability to produce the items.

It was good then because buyers paid you by bank deposit and overseas sellers paid by Paypal (which was all in US dollars) and no one seemed to rip off those using bank deposit.

At first it took at least 6 to 12 months before the copies appeared on ebay but after about 3 years my items were copied by chinese fraudster and on ebay within 2 months and the same was for everyone else but now they only need 2 or 3 days to have a copy on ebay.

It isn't worth the time or trouble of creating ones own designs and then making  and knitting and/or felting hats these days.