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Far out idea... Toe nail clipping. Keep one end sharp. On one end put a tiny notch and wrap thread (will still need conventional thread) around possibly in a clove hitch. Make it as a thin as you can and still tie on the thread. On the comments about keeping a kit with you: https://www.instructables.com/Survival-Straws/ You can also make an even smaller version of this same principle with the inner core of a bic pen very portable.