Ok, this is a point of contention. I bought this plush set a while ago from a reputable company in the USA that imports goods and sells many kinds of plush. Though, when I got them, it struck me as odd that they didn't have normal tush tags and the paper tags weren't like normal Banpresto plushies. Still, the materials were good enough. So, according to myfigurecollection.net, these are not authentic plushies. But, they are the only Ouran plush ever made.
I've already sold all of them on ebay but I thought I'd post a shot of the set here simply for posterity. (For reference they sold for $30-34/ea, though Honey went for $25).