How to Make a Pull Fuse Smoke Bomb
Everyone should have some sort of flare or smoke bomb in their survival arsenal. They can be used as a way to mark your position and signal for help, and they are also a fantastic defensive resource as well. These simple devices can buy you precious time when seconds are the only thing that stands between you and survival. Making your own is a lot easier than you think, and you can fashion an improvised device that works without a lighter and provides a steady stream of thick, colorful smoke.
Preparing the Tubes, Fuse and Trigger
You want to prepare the tubes and fuse before attaching the trigger and assembling the device. The first step is to take the cardboard from a roll of toilet paper and cut it open lengthwise. Then, cut about ½ inch off to shorten the paper. Roll it back up and tape the bottom and sides completely with electrical or duct tape before setting it aside. Next, cut a drinking straw to match the length of the roll and tape up the bottom end. Cut off the heads of a box of matches and smash them up until they become powdery mixed with chunks. Pour into the straw until it is full.
Next, take more matches and tape them around the sides of the straw. The matches should be touching each other in a consistent circle. Tape them securely, leaving only the heads and a small bit of wood exposed. Take the match box and cut off the striking strips on either side and set them aside. Take a paperclip and open it up. Bend it into a circle and twist the ends together and cut off the left over pieces of wire. Place it between the tops of the two strike strips, with the strips facing inward. Tape the top portion together. Fold the remaining portion of the strips over the match/fuse assembly and secure with a rubber band before setting it aside.
Preparing the Mixture
All you need is three parts of white, granulated sugar for every two parts of potassium nitrate and ½ part of baking soda. Baking soda is important because it slows the rate of combustion and extends the amount of time that smoke will be produced. Also, add about two to three spoons of dye powder or colored chalk. Mix all of the ingredients together in a pot on the stove over a low flame. Continually stir until it becomes the consistency of thick pancake batter and remove from heat.
Let cool until it thickens slightly and pour into the shortened toilet paper container you made earlier. Insert the match/fuse assembly into the center and let cool and harden. Once the component has cooled to room temperature, place it inside another cardboard roll of toilet paper that has not been cut. Tape the bottom and pad the inside of the top part with tissue paper. All that should be sticking out from the top is the paperclip loop.
Wrap the whole thing in duct tape, but make sure to leave a gap in the top near the paper clip. This will ensure that it won’t get caught on the tape when you pull the trigger, and it will also produce a vent for the smoke to exit. All you need to do is yank the paperclip loop in order to cause the matches to light, igniting the chunks in the straw which will ignite the mixture. Make sure that the top is facing away from you as you pull the trigger, and throw or roll the device quickly to avoid getting burned.
This simple trick will create a blast of thick and colorful smoke that can obstruct visibility or call attention to your location if you ever get lost or stranded.