Amarillo had dies made years ago for coins
Still using one that James Kile gave me (which means many, many years ago). With a sharpie, color in the helmet on the heads side, and, with a different color, fill in the, uh, 'hiney' on the tails side, and you can't miss. Gotta refresh the color a couple of times during the season, but, I haven't found a better size or better images. Yeah, might be nice if the coin came with powder coated colors. But good, as is.
Robert