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Yes, the TSA explicitly allows HotHands and similar disposable chemical hand warmers in both carry-on and checked luggage on US domestic flights.

Yes, you can bring hot chocolate powder in carry-on or checked bags. Containers over 12 oz (350 mL) may need extra screening at the checkpoint.

Yes, the TSA allows homemade cookies as solid food items in carry-on and checked bags, but cookies with spreadable fillings may need extra screening.

Yes, the TSA generally allows homemade bread in both carry-on and checked bags as long as it remains a solid food item without liquid or gel.

Yes, hockey skates are permitted in both carry-on and checked bags according to TSA.

Yes, the TSA permits helmets in both carry-on and checked baggage, though airline policies on sizing and gate-checking vary.

Yes, you can bring a heated vest on a plane, but the lithium-ion battery pack must be removed and carried in your carry-on luggage.

Yes, you can bring heated gloves on a plane if the lithium-ion batteries are removed and packed in your carry-on, not in checked luggage.

Yes, standard healing crystals are permitted by the TSA in both carry-on and checked baggage, but sharp, heavy.

Yes, you can bring Hawaiian leis on a plane in carry-on or checked bags, but fresh leis from Hawaii must be declared to USDA agricultural inspectors.