Jesse pinged me on IRC and asked if I'd post some photos of the Firefox T-shirt. Well, as luck would have had it, I'd just got my shirt in the mail a couple of days before. The shirt's a bit wrinkled because I'd worn it to work but here are some quick photos.
As you can see, it's a great looking shirt and I encourage all of you Firefox fans to head over to the Mozilla Store and purchase one for yourself (heck, get a second one for a friend -- these shirts are that cool!)