One of Turkey’s most popular souvenirs, these blue eyes named as “Nazar Boncuğu” made of glass are actually meant to ward off the negative energy from someone’s eyes who feels envious of you. The evil eye is blue because according to superstition, blue eyes give off the most negative energy, and the glass eye is supposed to cancel it out. Traditionally, Evil eyes are pinned onto newborn babies’ clothes as well as hung above doors in houses and businesses for protection against bad luck.