2. Fishing Tackle
Fishing tackle will be allowed in carry-ons, as long as it meets the size requirements or your airline. This includes telescoping fishing rods and lures, BUT it goes without saying that there’s a certain level of discretion required when putting together your carry-on tackle box.
Large hooks may cause problems for you as you go through security, as well as large stringers or anything else that could be construed to be weapon-like. Obviously, you should leave out that fillet knife, as it will be intercepted and possibly confiscated.