Chapstick works on cotton balls and lint for both sparks and flame - it just has to be "fuzzed out" quite a bit. Haven't tried with other tinders but the principles will hold true.

Wick and wax (as in any wick and any wax) will probably ignite. I've been told that earwax works, but I haven't tried that one...yet.
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(posting this as someone that has unintentionally done a bunch of stupid stuff in the past and will again...)