His fifty-fourth birthday is tomorrow, but he apparently opened the present I sent already.
He seems to like his T-shirt (I kinda knew he would). It's from the webcomic
Toothpaste For Dinner. If you can't see it clearly, it reads: "If you're not part of the solution, you're part of the precipitate."
The front of the card reads: "You're not getting older ..." And the inside says: "Well, actually, you are. But Happy Birthday, anyway!"