flash paper routines

I'm considering a trick where I produce a hand rolled cigarette/joint that I am able to light and it burns up instantly. Would this be something I could achieve with flash paper and cotton, or would there be a better technique to use for something like this? Currently I do not have any...

I recently discovered a cheap alternative to flash paper- Tea bags! They work fine for stage magic, but for up close stuff, not so much. The problem is that there is still a tiny piece of ash that remains floating around. I am all for using it, I just felt that maybe there would be a better...