Hi RR,
Thanks for this.
it's amazing how many "petroleum-jellied" cotton balls (five or six) you can stuff into a 35 mm film-canister or plastic pill-bottle. As you know and demonstrated, it's important to then have the gummy balls first stretched-out and fluffed as much as possible (to increase the lightly-coated fibres' surface-area to oxygen) before sparking them.
But that's not why I am commenting. Years ago it occurred to me (or maybe I read it somewhere) that it's a no-brainer to slip a suitably-sized home-made "ranger-band" onto the canister. Almost weightless, often useful, easy to find, less slippy, and ... the best part, once a "jellied-ball" is burning nicely, you always have the option of adding the ranger-band to the fire. It burns great.
And there are more where that one came from, right? One blown-out rubber-tube from your bike will last a decade!