Years ago I had some fabric friends in Australia and it wasn't that bad... has been awhile since then so I don't know current tariff or customs stuff. It was pretty fast getting there, but one of them was remote and it often took a bit to get to home.
This might help you:
https://www.usps.com/international/f...al-service.htm
Says (if it fits) and under 4 lbs, would start at $17 (US).