Back in1994 I flew from Indianapolis to Israel with a similar item.
Forgot I had it till a search at the Wailing Wall when a guard pulled it out and asked about it.
I just kind of stuttered an the guard just put it back in my backpack and waved me in.
Flew back ten days later sweating the whole way.
It’s one of those 3 sided spikes.
Still have it ,but I Empty my travel gear
Completely nowfor a good search.