This Kelly Worden Safety Wrench will pass most inspection points. It has no sharp edges, but yet is a formidable self defense tool. Used properly, it adds psi focus to any technique and allows for hooking and control.
Affectionately called the CIA hairbrush, this tool is completely composite material and won't set off metal detectors. When the head is removed, it becomes a sharp, almost indestructable defensive tool.
These discreet pen shaped pepper spray tools come in Pink and Black, and easily fit into purses and pockets. A range of 15' allows you to keep an attacker at bay and contain a UV visible dye to mark the subject.