Jack Sparrow's Attire Points to the Character's Muslim Inspiration

You can fault the Pirates of the Caribbean movies for a lot of things, but to the franchise's credit, it always kept true to the Disneyland ride it was based on by having almost nothing to do with real pirates, with Captain Jack Sparrow as the prime example.
Try to put away your personal feelings for the movie or Johnny Depp and ask yourself: Does this man look anything like a classic pirate? I don't know; between the mascara, the bandanna, and the braided beard, he more resembles a goth hippie or something. And what's up with all the crap woven into his hair? Like this medallion here:
Huh. That looks suspiciously like the Turkish star and crescent, but ... how? Call me crazy, but I faintly recall that Pirates of the Caribbean took place somewhere in the general vicinity of the Caribbean, so what is Jack Sparrow doing with an Islamic symbol in his dreads? Actually, if you subscribe to a Reddit theory, the coin and the rest of Sparrow's attire might actually be referencing the character's real-life Muslim inspiration, the infamous pirate Jack Ward.