I fly with a flipper zero often. What are you talking about?

They are confiscated when they notice.

I need evidence. I've been through TSA lots of times with mine and taking it on transcontinental flights. No one's ever cared. Last year I flew to Def Con with a Mesthtastic radio and a Raspberry Pi server strapped to my backpack, complete with cabling, and no one batted an eye.

There's no regulation against carrying one around with you, including on flights.