We have been receiving request for the template of our UVM research trial Industrial Hemp No Trespassing signs (PDF template) as well as a JPG file format.
We ordered ours a few years ago from Premier Signs & Graphics at 1651 St. Albans Road, Richford, VT 05476, 802-848-3151. Material options were coroplast, PVC, and maxmetal. We also purchased the u-posts from the same vendor. You can use the template and order them from who you wish.