Escher style tesselation of cows heads

"Cow Mania"
a Beefy, MmmmmoooOOOOving Mad Cow Tessellation by Alan,
a Student Cowboy in Brenda Senack's Math 4 Enriched Class (and Dairy Farm*)
in the Barnyard* of the Geneva City School District, New York State

*No, not really

  mc escher style tiling of pizza people make it yourself tessellation art MCEscher style tesselation art: Flowers