Not sure if you were interested in Ebay, but here is a link to one being sold on there...
http://cgi.ebay.com/WILTON-FILIGREE-GAZEBO-KIT-DISCONT-ITEM-NEW-L-K_W0QQitemZ160112468882QQihZ006QQcategoryZ46281QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Not that I'm recommending it, but how hard would it be to use a round cake stand with pillars and pipe that fence looking stuff at the top and bottom with royal icing? I havent tried that "string work" (i think that's what it's called) but I inagine it's pretty hard.
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