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(CNN) --
Most travelers have learned the hard way that we can't take, say, a bottle of water past airport security.
However, some people just don't understand what is allowed on a plane and what is not.
So the Transportation Security Administration (TSA) publishes an annual list of the strangest items seized at airports to raise awareness.
Figures from the Federal Aviation Administration confirm it: 2021 was terrible in terms of passenger misbehavior on flights
In a pun-filled video posted on Twitter, the TSA announced its "Top 10 Seizures" for 2021, though we're having trouble seeing the humor in most of them.
"Our officers found some truly unusual items," the TSA said.
"They worked hard to keep travelers safe as they returned to the skies."
It's here!
“TSA's Top 10 Catches of 2021!”
From bear spray to meth-rites, our officers found some truly unusual items.
They worked hard to keep travelers safe as they returned to the skies.
What would you pick as your number one catch?
Let us know!
#TSATop10 pic.twitter.com/3o2zQs5IrC
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— TSA (@TSA) January 10, 2022
Here is the list:
10. Bullets hidden in a deodorant stick.
This passenger must have been "sweating bullets," the TSA video says.
9. Long-barreled antique-looking pistol.
8. A meth-laced breakfast burrito.
7. A belt buckle that conceals a firearm.
6. The blade.
"It's not a good idea to pass this through security."
5. A can of bear spray.
4. A machete.
3. Fireworks.
2. A wine bottle holder that looks like a gun.
1. A chainsaw.
"They can't confuse us," the video says with a laughing emoji.
A baby?
One item on the 2020 list was less threatening and perhaps more curious: a baby shark floating in a bottle of condoms.
The shark was not the problem.
"The chemical was deemed to be a hazardous material and as such was not allowed through the checkpoint," the TSA said in a statement.
The TSA prohibits carrying guns, knives, blackjacks, self-defense devices such as pepper spray, and any replicas of these items on planes.
Before your next flight, check the TSA regulations.
And leave the guns, drugs and fireworks at home.
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CNN's Maria Morava and Scottie Andrew contributed to this report.