[Macoozie]

As a full-member in the “Church of the Sacred Gravity & Spring Blade” your switchblade is a religious item.
Muzzies get to carry a knife onto planes, so you can carry your precious religious object too.

FSM’s get to have a Driver’s License photo with a spaghetti strainer on the head, you get your special religious accommodation too.

[Anitius Severinus Boethius]

You are thinking of Sikhs, not Muslims, who have the kirpan on them at all times as a tenant of their faith.