Yes they do. Also at the Gag Factory shop in ToonTown in DL. I personally saw that they had a much smaller selection than at the DCA store, but others disagree (might have to do with where you go first and what you are looking for).
I have in my notes, where I'm trying to figure out if a Premium AP's discounts would be worth it, that I would have gotten 1.80 discount with the 10% premium, so that makes me think the cost was $18.
Remember, it's better to get the actual head elsewhere, b/c they are cheap and take up space in the box. You can just pack the box with parts that way, and you can even ask the CMs for help! Be sure to get left AND right arms in equal amounts; the Disney arms hold Disney things, so you need them.
If you do decide to get the head (we did), fill the head before putting it in the box! If there are little things that can go in other things, do that. For instance, we got a
Disneyland ticket, and that goes in the tourist suitcase, and then that went into the head (along with a bunch of other stuff) which went into the box. I got stuck, the CM came over, and she got a bunch more stuff in there that I didn't.
That's probably way more info than you needed!
oh, there's also a big clear potato that is a "case" itself, and you can fill that, too. I think it's twice as much money, but you can also fit probably twice as much stuff inside!