Gravity Falls Bill Cipher Eye Sticker
This is the eye of Bill Cipher, a triangular inter-dimensional demon, formerly existent only in the mindscape before gaining access to the real world. He is known for his mysterious demeanor and sadistic humor. Even though Bill Cipher was the main antagonist of the series, serving as the overarching antagonist in both season 1 and season 2, in our fanart Gravity Falls Bill Cipher Eye Sticker, he is dangerless.