I like that doing something that may otherwise make them feel awkward empowers them to "free themselves" and be comfortable in the skin they are in! What might happen if a kid does not get the "wiggles" out? How do we push them along?
I have never heard of this organization but certainly is an easy way for students to find a cause to support and design a solution for the people impacted. How might we get a few classes to see the benefit of this and not just one more thing to do?