Horse head mask
rubber mask resembling a horse, a fad of the early 2010s

The horse head mask is a latex mask representing a horse head originally manufactured by novelty purveyor Archie McPhee, and now widely available from other manufacturers. It covers the entire head and is typically part of a Halloween costume, or is worn at other times to be funny, shocking, incongruous, or hip, or to disguise one's identity. It has also become an internet meme.
Origin and meme history
The horse mask was originally sold by novelty purveyor Archie McPhee as a Halloween costume since at least 2003. Marketed under the name "Horse Head Mask", is made of "realistic brown latex with faux fur mane." McPhee claims "a person wearing a Horse Head Mask looks downright disturbing" and that the mask "has become a worldwide phenomenon". Other manufacturers have since closely copied its look and design.
It is unclear when the mask transitioned from a novelty item to a meme, but there were a number of "accelerants" according to Caitlin Dewey of The Washington Post. In 2003, the Japanese anime Full Metal Panic? introduced the character Pony-man, "a horse-headed villain who pursued schoolgirls with a hairbrush". Pony-man resembled someone wearing the McPhee horse mask, and since the masks were already being sold, "pony-man kept cropping up".
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This entry incorporates text from “Horse head mask” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.