I have to have one of these. Sums me up so well ;)
But I'm in the UK not San Diego so please do add them to the store!
Here's how it came out:

That's me in that picture, by the way (not), lookin' pretty ripped (not), from all the workin' out I do (not) like 4 times a day (not).
Anyway! You can snag your San Diego Comic-Con Exclusive T-shirt next week, at booth #2107!
And who knows: If they get a good reaction at San Diego, we might bring 'em in the Sheldon Store. We'll see what folks think of 'em.
Living outside of DC, to quote John Pinnette "me and some of my large mammal friends" could really use a good t-shirt like this. Get it in the store or at least bring some when next you come to Maryland/DC/Virginia!!!
Yes, because the model above looks so much like a manatee. More like a Manganiello.

One of the few time I am regretting living in Colorado...
Please chalk one more vote up for "Please sell the shirt in the online store".
Maaaaan, too much con-only stuff :p. ...So when will there be 30-year-old-fans-from-Southern-Germany exclusive shirts?
So another vote for having those in the online store.
Exclusive to some convention I'm not attending? Aw crap! I totally was gonna buy one until you said that.
PLEASE sell these to mortal folk. Unless you happen to hate money. I have a feeling they'd sell very, very well.
I don't live anywhere near San Diego. Either bring them to Baltimore or put them online. The first time I saw the badge in the store, I told my wife, "If he makes a T-shirt out of that, I want one!"
I would buy one if you make it available in the Sheldon Store!!
I would buy one, if made available online. The pin is actually one of my favorite safety pin substitutes for holding race numbers to my triathlon jersey.
Oh, Man! Gotta get one of these... No make that two...or maybe three... I know waaay too many fellow manatees, and can't get to the con. My son the artist is requesting Dante's Decision Tree poster online post-Con, as well. Please?
(Gave my mom one of the buttons while she was in rehab after heart surgery - you now have a whole passel of new fans who are Gramps' peers.)
Oh, and sea locked Aussies would LOVE a few of those shirts! (At least THIS Aussie would!)
PLEASE release for all Sheldonistas, not just those freaky-awesome-lucky enough to attend a con!
Please????
put me down as one of the bummed if the convention was the only place to get the shirt and put me down as one of the elated if it was available after.
(it's no caps/minimal punctuation/run-on sentence monday in my world...)