This has to do with fire and fire = burn so be careful.
I am not responsible for any harm these things do.
Step 1: Materials
1) Aluminum foil
3) A book of matches
Step 2: Putting it all together
Then take your scissors and cut the heads off all the matches.
Place all the matches on the aluminum foil and wrap it tightly keeping all the match heads in a tight pouch.
Step 3: Fireing it.
Then take a large rock. a metal weight, or a sledge hammer. and strike it very hard.