Saw an advertisement in my latest NEO Magazine advertising for a free Watchmen Limited Edition USB Stick. There were no further details on size and whatnot but looks pretty neat so have ordered myself one. It is free though you do have to pay postage (so it's not really free.....).
It is listed as available while stocks last so get your orders in if you want one. It also comes with some Watchmen material (character guides, images , etc) and there are further options such as a theatrical poster and DVD though you do have to pay more if you go down that route (this deal is for the USB flash drive only so dont take the price to incorporate everything else).
Will post back details when I actually receive it on size and whatnot but I couldnt' really care less as I just want it for the sake of having it; will never actually use it!