Those rules specify that all liquids, gels and aerosols be limited to containers 3.4 ounces (100 ml) or less that fit in a one quart-sized, clear, plastic, zip-top bag. Each passenger is allowed only one bag of liquids or gels.
Even if you have just a little fluid in a container larger than 3.4 ounces it’ll get thrown out at security.
Exceptions are made for liquid medicine and for breast milk, formula or juice for young children. Mastectomy products also are allowed. They include prosthetic breasts, bras or shells containing gels or saline solution.
No snow globes are allowed. Wrapped presents might need to be unwrapped for inspection. Other prohibited items include gel shoe inserts, tools such as screw drivers longer than 7 inches, baseball bats, golf clubs and cigarette lighters.