as a teenager with a wooden boat we had those throwable cushions and let me tell you they saved my fan-tail from the mounts waves many a time. I can see the lettering coming off now in the hot sun and going onto the bottom of the bathing suit.
I think a decal could be issued with the registration that would allow one to put on or near the dashboard of the boat. I have decals on my dash that gives ocean bouy system. On the dash at least it won't be on the can, for someone else to read. and it would not be that expensive to put out.
