The 501st takes great pride in its charitable works and promotional appearances, but there are those occassions when fun is still the primary call to action.
It's at these events where everything you thought you knew about the Empire flies out the window. You'll often find Stormtroopers, Bounty Hunters and Sith Lords acting conspicuously out-of-character and wearing things that could hardly be defined as standard Imperial issue.
If there's one thing our members have learned about dressing up in plastic, it's to have a good sense of humor. A Stormtrooper's frown is just a smile upside-down.