I did this twice last year with two of those small resealable tins black treacle comes in with a combination of silver and paper bark. filled about a third of the tin.
4 lessons I learned:
1. if it came from a dead tree, make sure to scrape off bottom much of the iner bark as possible as this caught fire in my firt attempt. (don't know why)
2. poking extra holes in the bottom means that the one hole is less likely ot get cloged up.
3 whats left inside the tin looks mental!
4. don't forget to poke your holes in the bottom or it will explode!! (yes i learned this the hard way.)
regards
Stephen