 This table full of things recently stopped at TSA checkpoints. A throwing star, good for a ninja, bad for a plane. So are knives, tasers, or hand grenades, replicas or not. And that is an electric sander, not a carry-on item. Every Independence Day, there's a spike in fireworks. Explosives of any kind don't fly. It's going to slow down the efficiency of the screening process. In addition to you, it's also going to slow down every passenger behind you.