Earlier in my life, when I flew less, I took a small metal knife, fork, and spoon with me most places so that I could eat anywhere without my silverware splintering into my food. Lately, I've learned that silverware gets confiscated at airports, even dull butter knives, but that nonetheless disposable plastic knives and forks make it through airport security without any issue. This brings me some hope, as it seems that it's really the metal that's the problem, not the pointiness.
What are the actual guidelines on the constitution of admissible eating implements?
What's a good alternative to traditional metal cutlery for me—durable, but such that airport security definitely won't make me throw it away?