Recreating a Swimtail fabric tail?

[Mermaid Jaffa]

Well, I also appreciate the idea for the large fluke. I appreciate that you've posted it here.

Np. Its what Finfolk, Swimtails, Magictail and most likely other brands of large fluked fabric tail makers use.

I think in other countries, you call it shelf liner. Its clear, plastic sheet that come in giant rolls that you buy by the metre.