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Yes, you can bring a metal tin on a plane; in carry-on it must be empty or hold items that meet TSA 3-1-1 and screening rules.

Yes—small instruments can fly in the cabin if they fit; larger cases need a seat or go checked.

Yes, you can bring a multitool in a checked bag; sheath blades and don’t pack spare lithium batteries alongside it.

Yes, you can bring a medical syringe on a plane; keep it with the medication, declare it at screening, and place used needles in a sharps container.

Yes—luggage scales are fine in carry-on; digital models are screened like small electronics, and spare lithium batteries ride in the cabin.

Yes. Massage guns are allowed in carry-on; keep lithium batteries in the cabin and present device for screening.

Yes, mirrors are allowed in carry-on luggage; pack them well and be ready for screening, with the final call made by the officer at the checkpoint.

Yes — disposable leg razors and cartridges are allowed in carry-on; safety-razor blades belong in checked bags.

Yes, TSA lets you bring a meal in carry-on if it’s solid; sauces and spreads must follow the 3-1-1 liquids rule or ride in checked bags.

Yes, you can bring a lightbulb on a plane—carry-on and checked are both allowed; pad fragile bulbs and keep spare lithium batteries in your carry-on.