We're not exactly sure when it happened, but somewhere between "Ren and Stimpy" and the "Ugly Doll" craze, someone decided that gross is cute.

In this Nov. 24, 2010 photo, from left, Rabies, yogurt and E. Coli are represented in stuffed toys by Drew Oliver, owner of Giant Microbes, seen in his Stamford, Conn. offices.

Gray discovered Giant Microbes after writing on her blog, www.starkravingmadmommy.com, about her 4-year-old son’s germ anxiety after preschool lessons on hygiene.

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Colossal microbes taking over the world sounds like a B-movie plot, rather than the business plan of a stuffed toy manufacturer. We asked Drew Oliver, the creator and CEO of Giant Microbes, about ...