An Inert Explosive Vest
We have to admit, we were scared just looking at it. This item alarmed the X-ray operators as it was found in the contents of a checked bag. You have to admit that it seems like the real deal, and indeed it is. Only all of the items (including electric matches, a bag of potassium chlorate, and titanium powder) were inert.
This scary suicide vest belongs to an explosives instructor traveling with his training aids.