Hmm. I stopped by the booth and didn't notice anything about dive flags!! Have you considered doing something at the next boat show?
And a pet peeve. The "Pleasure Craft Operators Card" is a certificate of proficiency, NOT a license. Just as your card for diving certification is not a license to dive. I've actually spoken to folks running the booths that offer testing and cards if you pass, who've approached me and asked if I have my "Boating License", with the comment, that if they don't know it's not a license, why would I take course with them, who knows what else they don't know. FWIW, I've had mine since 1998, along with my wife and 2 of my kids who got theirs in '99.
I think some effort needs to go into educating divers about boats. I perhaps have a different point of view, since I am a boater and diver. I find the majority of divers have little appreciation of how difficult it can be to see flags, buoys, etc from a boat. Last year I came within feet of sailing over the top of a small boat. There were two guys in a camouflage painted 14 footer sitting in the middle of the channel fishing. I spotted them when I saw a flash of bright colour when one of them cast. Their camo worked really well against the wooded shoreline.
Lastly, most dive flags are so small, that most boaters won't see them till they're closer than we'd like. If the boat is down wind, they won't see them at all. In a lot of cases, when they do see them, they will actually change course and approach until they can see clearly what the flag is, which is not what we want to happen. And the dive flag being red and white, which is also the colour of our national flag, it's not hard to see why many are confused. So, I tend to do my shore dives without a flag. When diving from my boat, I run up a flag that's 3 feet tall and can be seen from a good distance.
I don't want to appear all negative. I think the Aviva Barth Memorial Project is a very worthwhile endeavor and will see what I can do to help. Have you been in contact with the OMOA
Ontario Marine Operators Association ? Most marinas are members, so it would be an efficient way to distribute signs, literature, etc. There is also the Canadian Power Squadron and The Ontario Sailing Association
Ontario Sailing Association to which most yacht clubs in Ontario belong . Please note, the yacht club of which I am a member is around 30% power boats and the keel on my sailboat is 4 feet deep a friends draws 6 feet and that 2000 lbs traveling at 5 to 6 knots would be a very nasty hit and a complete surprise, as it's silent, so don't ignore that boating segment, which generally doesn't use boat ramps. I just visited the OUC web site from your link above. I am disappointed to note that there is NO reference to the project anywhere on your home page. You have to go to the safety page.
Feel free to take this to PM's or PM for my email address if you'd like to discuss my opinions in detail.
Kent