Just thought that there should be other ideas similar to the "ALS Plunge" for other causes. The one that I often think of is Alzheimer's. What about "Hug Your Neighbor" for it? Then when they ask "what was that all about?", you could say "What was what all about."
It is a serious malady and could use additional funding,
Perhaps one of you might come up with an idea for whatever cause inspires you.