My Late B-I-L had a Cigar Punch made from a .44 Cartridge. He had it with him when we were flying to Vegas. It took 3 TSA Agents to make the decision that he couldn’t take it on the Plane, even when he showed them how it came apart to expose the small round Punch.
It went in the collection of dangerous items and was gone.
I think it cost him around $20 when he bought it.
I have been reloading ammo since I was 14 years old. I also pour my own bullets for my target ammo.
I will take my rejected cases, drill out the primer pocket and insert a loop of thin chain then pour molten lead into the bottom half of the case. The lead hardens and locks the chain into place. I then use my press to put a bullet on top.
I bet the TSA idiots would not let those key chains through.