A souvenir-weapon is location dependent, meaning that the souvenir must be an obvious and well known item related to the destination’s history or culture.
Both of which can be used as force multipliers in a pinch and without concealment – of which are widely available in the streets of their respective cities.
However, sometimes the local souvenir is an actual weapon, or at least a replica of one that represents something of importance to the destination.
Replica or not, they may still be used as one.
Shown above are several Phurba Dagger souvenirs I recently acquired from Kathmandu, Nepal.
While obviously not an actual artifact but a mere replica, it’s handmade from a solid piece of brass and has a moderately sharp point, effective as a special circumstance CQC tool, at least in my hands.
Other than the utility usefulness of these souvenir-weapons, the important factor is that it gives the wielder plausible deniability of carrying a “weapon”.
Or more specifically, plausible legality to carry it.
In almost every case, this should be legal, at worst a bypass of the local laws but hardly a violating it.