So make it so that every corner store in China has "Authentic Rhino Horn". No one can tell the difference between the real and the fake stuff, discourages buyers from buying, market dries up.
http://www.rhinoresourcecenter.com/pdf_files/132/1321179326....
http://www.pnas.org/content/104/10/4228.full
Bioengineering wildlife products is something my start-up, Pembient, has been working on for a while now.
Checked out Pembient, very cool idea and I hope you succeed. Also subscribed to newsletter.
https://www.thedodo.com/community/Elegirl/the-truth-about-tu...
Taking just the tip of a tusk might be the best option for evading a DNA test.