Can you bring embroidery needles on a plane? In general, security personal and airlines allow you to take your embroidery needles in carry-on luggage in the plane.
The TSA advises all needles should be enclosed in a hard shell when not in use. The best approach here is to buy something like John James Pebble, as it's clear, so the TSA agents can see, they're enclosed, and they stay they're embroidery needles (this is rarely asked, but helps to show it).
Yes, crochet hooks are allowed on airplanes (in both your carry-on or checked) by the TSA. One note: The app does notes that sharp objects in checked bags should be sheathed or securely wrapped to prevent injury to baggage handlers and inspectors. That would go for knitting needles, as well.
When sewing machines fly. The important thing to remember though is to remove the needle and any other sharp tools if you're going to bring as carry-on luggage. A quick search on the TSA website does indeed confirm that you can bring a sewing machine in your carry on or checked bags.
TSA allows bringing nail clippers on planes. You're allowed to pack them in hand and checked baggage without any packing restrictions. They're considered harmless because the blade on them is too short to successfully be used as a weapon.
TSA considers tweezers to be completely safe, so they're allowed on planes. You can pack tweezers in hand or checked baggage without any packing restrictions. But TSA doesn't allow packing sharp objects in hand baggage because some of them could be used as potential weapons.
If you're wondering whether you can pack needles in your checked baggage, the answer is generally yes. However, it's advisable to place them in a secure container to prevent accidental injury.