Chimpanzee Halloween Mask - Sculpted by Erich Lubatti What Halloween Face Mask collection would be complete without a Chimpanzee in it? Erich Lubatti was nice enough to help us out. Chimpanzee is part of Trick or Treat Studios Halloween Face Mask collection. These masks are identical to the ones at Knott's Scary Farm's Halloween Haunt as Erich Lubatti makes the Scary Halloween Face Masks worn by the street monsters. All of our Halloween Face Masks come with a sewn strap to fit comfortably on your face.