This Serenity in a Jar Green Firefly T-Shirt is cute and a must wear for Firefly fans. It literally puts Serenity in a jar, which is how you catch a firefly after all.
If you were the kind of kid to go out at night and catch fireflies and are a fan of the show, this shirt is extra special. Good thing that lid has air holes. I would hate for the crew to suffocate.
This cool shirt is just $19.99 from Superherostuff.com.