To make a pipe bomb, you will need tape, a shoelace, vinegar, dry ice and nitrogen chloride avalible at your disposal. You can find these materials at your local hardware store. For the first step you need to take a suitable container for your explosive. For this tutorial, i am going to be using a plastic water bootle as an example. Place about 50 miligrams of nitrogen chloride in the bottle then insert your dry ice carefully. Mix your contents with about half a spoon of vinegar in the bottle. Close and shake your bottle careffuly and allow the dry ice to impact the cap. The point of impact will become where you attach your shoelace. Tape your shoelace onto the impact point. Upon usage, the flame will transmit kinetic energy to the dry ice mechanism.