@MasterBigAb
In my country, it is common to see it on almost anything, from babies, horses, doors to cars, sidewalks, cell phones, and even airplanes.
The idea of using the "nazar bead" is that it will attract the evil eye (nazar) before it can damage the thing or the person that it is directed to, absorbing the damaging power of voluntary/involuntary "evil look". Therefore the nazar bead is always out in the open, not a secret talisman.
I mentioned our M2:TW mod "Ottoman: For the Love of Sultans" with that buddy...
BTW, thank for the +rep, appreciated!
With best wishes...