Really cool homemade bomb idea!
I came up with this in school one day. Here are the materials needed:
Coke BlaK bottle w/ cap
2 bottles of rubbing alcohol
Matches
Metal bucket
Water
Non-acid drain unclogger (preferably Thrift)\
Aluminum foil
Water
Porous rope
Duct tape
Pour all of the rubbing alcohol into the bucket.
Soak the length of rope in it.
Lay the rope out so one end is in the bucket, touching the rubbing alcohol, and another end is as far away from the bucket as possible.
Fill half the Coke BlaK bottle with water.
Roll up a few tubes of aluminum foil and stuff them in the bottle.
Add a good bit of drain cleaner.
Screw on the lid very tight. You have made a classic example of a "Drano bomb". Now work fast.
Use the duct tape to tape the lid on.
You may notice the bottle getting extremely hot. It is producing hydrogen gas.
Drop the bottle into the bucket.
Light the free end of the rope on fire with the matches so the rope acts as a very long fuse.
Run like hell.
When that bottle gets enough pressure, it will blow up, releasing the pressurized hydrogen gas. The flaming pool of rubbing alcohol in which the bottle is sitting in will ignite the hydrogen. Boom.
Why a Coke BlaK bottle? It is a glass bottle with a screw-on plastic lid like on plastic bottles.
Enjoy blowing up your forest.