NOT A Bomb
I flew with an antique 12-inch cast-iron skillet with a lid and two antique oil lamps with iron brackets and a mercury glass reflector in my carry-on. They were family heirlooms that I very carefully and skillfully wrapped in my sweaters and a long velvet skirt and lined everything with socks and bras (yes, my packing skills are to be envied).
I had to explain to the TSA that I was not planning to use the skillet as a weapon and that the reflector was not the casing for an explosive while my bras were laying all over the table. Me yelling “be careful with that – it’s super fragile!” probably didn’t help with my not-an-explosive plea.