Why knit with pencils
If my needles (bamboo circs) are confiscated by TSA, or I am asked to put away my knitting during landing and take off when we fly on Monday, I will smile sweetly, put away my project, break out two perfect pencils and begin to make [insert your suggestion here] while their jaws flap and if asked to put my pencils away, I will acquiesce, so long as they make an announcement to the entire plane that all writing instruments will be confsicated immediately.
Don't think it doesn't happen. Relevant paperwork (printout from TSA website) means diddly to someone on a powertrip. Having proof that what you are doing is allowed just makes them angry.