That's usually the case, but this sucker just refuses to work

Is there anything I can get premixed that I could still use on board? I wanna be able to just fill and shoot real quick, then air it out

Alright, so I've been making full size cannons for awhile, but I decided to throw together a mini to piss people off in my dorm. I'm doin' the pill bottle and pen tube configuration, and I took apart a scripto kitchen lighter (the ones with the long stem), making the standard 2 screw sparker system....