Molly Quinn dressed up as Captain Mal Reynolds during Comic-Con. I love that she is paying homage to Mal, played by Nathan Fillion, who plays her TV dad on Castle (Yay for Firefly!) This is so perfect it hurts!
"That Joss Whedon show." - Yeah Nathan that was a pretty good one. The movie based on that show was pretty good too. It's so funny because you look like the main character of that one joss Whedon show. (Nathan Fillon on Firefly)
The shirt originally said, "Some people are gay. Original pin: Get over it." They were made as part of a demonstration for gay rights in the UK. Sir Ian McKellen has been an outspoken advocate for gay rights.