The Transportation Security Administration has a long list of banned items. Some have conditions and some require you check with your airline.

Summary Min 8 Max 16 Shower or two. Possible rainfall: 0 to 3 mm Chance of any rain: 70% East Coast area Cloudy. High chance of showers, most likely in the afternoon and evening. Winds northwesterly ...

Summary Min 5 Max 20 Shower or two developing. Possible rainfall: 0 to 1 mm Chance of any rain: 50% Perth area Mostly sunny. Medium chance of showers in the southwest, slight chance elsewhere. Winds ...