My chrome bag had a tear in it and a pocket knife managed to make it in the space between the truck tarp liner and the outer. My wife asked me if I'd forgotten to take out a knife when she saw TSA running my bag through multiple times.

Keep the church key at home. that sharp point would make it get confiscated. Feel free to bring on all the pens and pencils you want, though. Get a 3 AA mini maglite LED flashlight for a makeshift kubotan.

I travel with my mess bag all the time and haven't gotten hassled over my bike tools.