Futuristic Futurama T-shirts
As they say on Futurama, WELCOME! To the World of Tomorrow!
And when I say the 'world of tomorrow,' I mean it in the sense that time continues to pass in a linear fashion and each passing second is technically the future. Also, there's some pretty sweet threads in the future. Featuring Fry, Bender, and all your favorites from the Planet Express crew!
Just don't let that Decapodian over there eat them. Dr. Zoidberg has problems with impulse control.
8. Why not Zoidberg?

Why not indeed! With this shirt, you too can find yourself swollen with patriotic mucus!
11. Futurama: "Shut Up and Take My Money!" (Fry)

What better way to spend that money than on 100 cups of coffee? Or 100 Futurama t-shirts?
20. Futurama - Ctrl-Alt-Kill

And now you accuse gentle Bender of a misdeed!? This is the last straw!
22. Benderbrau Bender Beer

Benderbrau! An ale, not a lager - sorry, you can't bring it to a baseball game.