Its not the tree you want, but the nut! :rotf: :rotf: :rotf: :rotf: :rotf:
Iam sorry but you left that one wide open. :rotf: :rotf:
The only thing that comes to mind is if you might happen to have a food processing plant in your area that might sell hulled Walnuts. The shell would become a by product. Doubt thats much help but I tried, and hopefully we both had a good laugh! :rotf: :rotf: