for the past several years, I carried a needle threader that had a small blade at one end. The last 4 or 5 years, I hae been able to bring the 1 1/2" blade scissors. BUT. ..... print out the TSA requirements and carry it with you. Several times I have been told that they are not allowed so I have showed the list to the agents.

I ALWAYS carry my crochet stuff when I fly - including 2 small, sharply pointed scissors, and have never, ever had a problem. They are always in the bottom of my tote when it goes through the xray machine.

Clover makes a wonderful little pendant that cuts thread. It's round and the blade is encased. If your fabrics are precut, it works perfect.

I haven't had any problem with needles or tiny scissors. I have carried both the little fold up scissors and a small pair of children's scissors

I take a needle threader with. The kind that has the thread cutter on top.

round tip small scissors are allowed, but check tsa rules first. I use a string ring. It is an adjustable ring that has a tiny blade in it, available at most quilt shops. Never had a problem with it.