I am building 2 mobile altars for my church from an ash tree that was cut down two years ago. I will soon be fastening ash panels (5/16" x 5" x 38") around their perimeters and I don't want the fasteners to be so visible they attract attention and distract. There will be about 200 fasteners, be it screws, brads, or whatever. The ash has defects, hence the reason for removal, and it is intentional that such is part of the altar. The paneling will be coated with tung oil to bring out the color and examples are in the pics. There should be plenty of time for the odor to dissipate before being put in use. The top will be finished with polyurethane.