If you haven’t heard of the 501st yet, here is their group description posted on their site:
The New England Garrison is part of a Star Wars costuming fan club that currently holds a 4000+ membership in all 50 U.S. states and 25 countries worldwide. From Stormtroopers to Snowtroopers, Bounty Hunters to Sith Lords, the 501st is the premier Imperial Star Wars costuming fan club in the galaxy!
In addition to having fun in costume, we also enjoy helping our community. We have had the opportunity to participate in charity events, children’s hospital visits, fundraisers, movie premieres, celebrity appearances and conventions.We can be seen in newspapers, the news, and all over the internet.
So come out, learn about fire safety, kill a few Jawas, and enjoy the day.