And there's a photo to prove it over at BrickPop. Apparently there were loads at Fred Myer's in Seattle, WA, but now there are probably none: the guy bought 11 boxes of them...
I guess those of you in the US had better get down to your local branch and see if you can find any.
(via Toys N Bricks)
Update: they are appearing on eBay already, where there are some great pictures. If you are in the US you'll see them on the set details page, if not you can view them via the Brickset eBay search page, and click on United States in the menu.
Update 2: BrickPop has now analysed the contents of the boxes and posted pictures, unfortunately not very good ones, of each 'fig.
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