"We want Zak McKracken and the Alien Mindbenders: Special Edition" is once such group. It currently has 106 members, and contains freindly support from the Fox, who revealed more about the famous "I'm selling these fine leather jackets" joke:
It was because all of the LucasArts employees were given the chance to buy one of these fine 'stressed leather bomber jackets' with an "Indiana Jones and the Last Crusade" leather label on the pocket... this was just before the film (or the game) came out. In fact, I think anyone could buy one -- they may have been for sale in the LucasArts online company store. Anyway, I still have mine :-)
Source: Our forums
Have David Fox in the project as advisor to help them find the perfect voices for the characters. :-)