Paper money is not the fruit of the tree. It is the invention of man. Man designs the shape of the bill. Man etches the picture and words on that paper.
Specifically, it is the government that mints money, not a tree, not a mine.
The Jews of old had their own mint, and honored world mints like that coin Jesus spoke of with Caesar's image. None could do commerce outside of that. God gave all governments, most if not all either creating money or accepting money of another nation.
What you seem to be teaching is that if I work 40 hours at a grocery store, I should accept payment in lamb meat and kosher foods as a salary so I can tithe some of that to a Levite somewhere, before the "Sell by" date? The man-made currency I've been taking is invalid because it is issued by the government that God ordained for me?
Send those putrid dollars you keep receiving to me. I know what to do with them.