Just to give an update about my recent experience flying through Heathrow...
I decided to go ahead and take the moebius wrap I've been working on with my Denise needles. I took the needles off the ends of the cables and put those end cap things on instead. Then I put the separated needles into my purse right next to my pens. My purse was stuffed into my carry on bag because Heathrow only allows one carry on and your purse counts. But it was seperate in the bag from my knitting.
I had no problems whatsoever, both when I flew into Heathrow fro the US and went through Security in order to connect to my flight on a different airline to go on to Paris, and when I went through Security at Heathrow in order to go home.
I only brought the pair of needles I needed for that particular project, not the whole set. I was prepared to lose those needles if I had to. I figured if I did, I'd just order another set of size 10 tips from the company. I was also prepared to try to argue that they were my personal set of chopsticks
, but thankfully I didn't have to go there.
Now, I did snap two of my cables while working on my project but I think that's because Denise needles are really not the best thing to use for a moebius wrap. The yarn kept getting stuck on the connectors and I'd have to push it hard to get it to move around (and I'm a very loose knitter too!).
I would definitely bring my knitting on another international flight, but I'll use my Denise needles and I'll disconnect the tips and carry them in my purse.