http://lebowskifest.com/fests.asp Yes, that's right. Comeplete with unlimited bowling, white russian stands, "The Ringer" toss contests, appearances by jeff bridges, john goodman, and sometimes other actors, and of course, screening of the movie everywhere.
I can die happy now...I had no idea such a thing existed. It all started by being bored and looking up "human paraquat" online.