A idea of a sticker is a good start Jm but you have to admitt the arrogance of the weekend warrior is that of something for them to look for so that they stay aware a small not on a pole reflective fluro flag attached to a bow or stern of a boat is that thing that could be put on a A4 courtey sheet in the surgested areas, The heading of the courtesy sheet Should be the Sticker Slogan
Nath