I've also put the limited edition Serenity Now/Equality Now poster up for sale on the site. We sold a bunch of these at Comic-Con.
And speaking of Comic-Con, I ran into Joss at the Browncoat booth, and before I had a chance to introduce myself, he saw the Miranda poster and said, "I LOVE that!" You can just imaging how ecstatic I was! Apparently he had seen it before, and he bought several. I think I'm still a little light headed. :)
Oh, and we've also started a contest! If you send us a picture of yourself in front of a recognizeable location, wearing something from Black Market Beagles, we'll send you a free button (maybe more if we think the place is really cool or unusual)!
x-posted to blkmktbeagles