Friday is the opening ceremony of the 2012 Olympics, and why not celebrate it the way all sporting events should be–with a costume party! One Stop Beer Shop will be screening the opening ceremonies and holding a costume contest offering a free growler to the best dressed olympiad wanna-be in the room. Dress up like your favorite Olympian (Michael Phelps? LeBron James?) for the win, plus silver and bronze prizes for second and third places. Also, 2-for-1 Captain Lawrence’s Liquid Gold and Brooklyn Brewery’s Gold Standard beer (see a theme here?), discounts on all draft beer + $6 beer cocktails before 8. Unless you’re in London, we doubt you can find a better party than this. RSVP on Facebook.