Typically "wheel standers" dont run road courses....they do exhibition work....short runs. Atomic clock run times werent part of Kiwi's original parameters. If the flints prove to be excessively short lived: For the extended duration of "tail draggers" one would construct a tubular magazine and spring load the action for more than one flint, sorta like the lighter in the first place.

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Dragging a dead short along will kill the performance of the chassis, let alone get the nose upon a wheel stander. In retrospect, dual flints are probably enough to limit the desired lift anyway.
Not sure how one would simplify the ignition of sparklers into something hands free or user friendly. Seems like a scale nibblet of sparkler might be as short lived as the flints.
Gonna have to kill a coupla lighters and see. The flint wheel diameter appears to be a workable diameter and Zippo parts look like they will work in HO scale. :wave: