Shia Muslims do not traditionally wear sword necklaces. The practice of wearing swords as necklaces is not a common or accepted practice within Shia Islam.
While some individuals may choose to wear sword-shaped pendants or necklaces for personal reasons or as a fashion statement, this is not a religious practice within Shia Islam. It is important to note that cultural and personal practices can vary within any religious group, and this does not necessarily reflect the official doctrines of Shia Islam.
The association of swords with Shia Muslims may stem from historical events or cultural interpretations, but it's crucial to understand that wearing a sword necklace is not a standard practice within Shia Islam.