Caution sign that warns you of cat vomit

I need a whole arsenal of these caution signs in my household. My cats, Oreo and Dusty, are always vomiting on the floor and making it a hazard to move about in the apartment. [via]
The sign is sold by PETA (yes, the often-crazy animal rights activist group), but at the moment, the item is either discontinued or sold out.
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