Sean's shirt themes are:
He actually has four or five Pac-Man themed t-shirts, but for some reason I could only find one photo of him actually wearing one. Lame. I might have to take more later tonight.
There's a Ghostbusters logo on the right arm of his jacket, if you can't see it in the second photo.
Again, he has at least one more Ghostbuster shirt, but apparently I have no photo of him wearing it.
Giraffes are relatively new, but I think we'll be seeing more of them in the future.
SHIRTS HE BUYS JUST TO DEFY ME
This shirt is so freakin' ugly, but Seanie found it on Threadless and LOVED it so even though I told him at least five times that it was hideous, he bought it anyway.