Then just use electrical tape. You probably never tried it because you have yet to walk in to a bike shop and ask for some free, damaged tubes.The reason I ask is that the fuel in my Zippos evaporates long before I use it, so I usually leave them empty with the bottle near it to fill as needed (I'm not smoker, but Zippos are just damn handy tools). I've seen the trick of putting a piece of innertube around the lighter to slow the evaporation rate, but I've never tried it.