You can get them at the stadium. If you are in the burbs I've also seen them at the Fire "kiosk" at Woodfield mall and the "Chicago" (it's for tourists) store at Gurnee Mills mall.
Ok, there is nothing on that website that even comes close to a window decal. People, read very carefully and very slowly: I am looking for a w-i-n-d-o-w d-e-c-a-l. If you do not know where I can find one, please do not add to this discussion.
I have gotten Fire decal "stickies" (the decals which attach to the window without adhesive) at Soccer Post in Glen Ellyn (53 and Roosevelt Road)
I got one from my Fire rep for re-upping my season tickets about 3 years ago (or maybe for buying playoff tickets - can't remember?). I asked my rep for a couple more and got 'em. I assume they have them in a box somewhere...
Alf, Centrum Sport has those decals in store. I got one for free, because I bought a Fire sweatshirt over there. I gave you that url so you can look their location up.
I picked one up at the Soccer Post in Naperville (off Ogden) but its useless. You would have to put it on the outside.
i've got an extra one you can have, but to be honest, i'm not sure why you want me to give you a st. louis cardinals window decal... i mean this is a a soccer message board, not a baseball one