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How to Make Homemade Firecrackers

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Homemade Firecracker Materials
You can get gunpowder for a homemade firecracker by collecting it from toy gun caps.

You can get gunpowder for a homemade firecracker by collecting it from toy gun caps.

Anne Helmenstine
Firecrackers are extremely easy and inexpensive to make yourself. You may want to make your own firecrackers because you are interested in learning how to make simple fireworks or it may be you are unable to obtain fireworks where you live. Fortunately, the materials needed to make your own firecrackers are very common.

Homemade Firecracker Materials

Toy gun caps are nice because the powder used in them is easy to work with. Here's how to get the powder out of the caps:
  1. Gently insert a pin or needle through the back of a cap through to the front.

  2. Remove the pin and re-insert it from the front, where you made the hole. Pry the powder out of the cap, tapping it onto a sheet or paper or plate or other working surface.

  3. Carefully work the pin around the edge of the cap to collect all of the powder. There is a very slight chance of popping the cap, so be gentle and work slowly.

  4. How much powder you need depends on the size of firecracker you plan to make. One ring of caps is more than sufficient to create a loud bang, but you really only need powder from about 3 caps for each firecracker. For the sake of safety, it's best to make one firecracker at a time (you don't need a big pile of powder).
Now let's assemble the firecracker.
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