Simply made by cutting the striker off the matchbox and laying over the matchheads like this:
Plastic bottel
Alminuim foil
Dranno crystal or liquid form
Water if u are using crystal form
Method:
Place some dranno into a plastic bottel
then make some foil balls and add it with the dranno.
Then add the water only a little because u want it as a strong solution then add cap and shake and throw.
Once u through u will see the white cass and see the bottel expanding in size and then booom!!!!!!!
