Just giving this information to you on a random comment.
"Tan, on the other hand, is popularly used in the names of moé anthropomorphisms, artistic memes on Japanese imageboards typified by a female character, usually depicted in cosplay, representing a non-human being, inanimate object, concept, or phenomenon, or a popular consumer product. Well-known examples include OS-tan (representing computer operating systems) and Bisuke-tan (representing KFC biscuits). Some of these characters, such as Binchō-tan, are real corporate mascots."
Tan
"Tan, on the other hand, is popularly used in the names of moé anthropomorphisms, artistic memes on Japanese imageboards typified by a female character, usually depicted in cosplay, representing a non-human being, inanimate object, concept, or phenomenon, or a popular consumer product. Well-known examples include OS-tan (representing computer operating systems) and Bisuke-tan (representing KFC biscuits). Some of these characters, such as Binchō-tan, are real corporate mascots."
From Wiki!