Big Bang Theory Costume Meeting T Shirt From the hysterical Halloween episode of the Big Bang Theory, it's Howard, Raj, Leonard, and Sheldon all dressed as the Flash for Penny's big costume party! "This is why I wanted to have a costume meeting" spoken by Sheldon and printed at the top of this black t-shirt. The nerdalicious cast looks amazing all dressed in bright red and yellow Flash costumes. Not wanting to change, Raj's idea for them all to stay in a straight line as to look like one Flash running really fast, would have been a great, but not practical. You'll love to wear this great Big Bang Theory t-shirt and show off one of your favorite episodes!