It’s actually stated on the TSA website that frozen liquids are permitted. https://www.tsa.gov/travel/security-screening/whatcanibring/items/ice
Notice the footnote on every TSA webpage that their officers can always change the rules on the spot if they feel like it. So it’s always a gamble.
Pouring one out for my cordless Black and Decker electric screwdriver.
Used to travel with it because it was small and light and it worked well for racking network equipment.
It was a cheap piece of junk. But it did the job. Until one day TSA decided I couldnt bring it any more. It was under 7" but that wasn’t good enough.
Told me I could check it. It would cost more for me to check a bag than for me to replace it.
Still upset about it.
This is what gets me the most. It’s totally arbitrary, every time it’s a chance for new rules. What you brought one way maybe a problem on your way home.
Special fuck you to the TSA agents at the Vegas airport, they’ve confiscated my lighter twice even though it’s allowed. Never had a problem at any other airport with them.