How to Make Ninja Stars Out of Metal

Written by morgan crouch
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How to Make Ninja Stars Out of Metal
Use ninja stars like real ninjas. (samurai warriors image by Oxlock from

Ninja stars are ancient weapons made quite popular by the Japanese ninja in films. These weapons, also known as shurikens or throwing stars, can be made with everyday household items such as knives, needles or nails. Once you feel comfortable enough with a paper ninja star, you may upgrade to metal in order to sharpen your ninja skills. When you get the hang of making one ninja star, work on creating a variety of different stars.

Skill level:

Things you need

  • Aluminium can lid
  • Hammer
  • Markers
  • Metal cutting shears
  • Metal file
  • Notebook paper
  • Scissors

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  1. 1

    Place the aluminium can lid on a flat surface. Using your hammer, gently begin to flatten the lid.

  2. 2

    Slide the aluminium can lid under a sheet of notebook paper. Draw a ninja star outline within the size of the lid. This can be as complex or simple as you wish. Get creative.

  3. 3

    Cut the design out from the notebook paper using scissors. Trace this design onto the aluminium can lid using a marker.

  4. 4

    Cut your design out of the aluminium lid using the metal cutting shears. Discard the excess aluminium.

  5. 5

    File down the edges on either side of each tip of the ninja star with the metal file. You may also take this time to sharpen the tips.

  6. 6

    Decorate your ninja star with any desired symbol. Use markers to give it colour or patterns.

Tips and warnings

  • Experiment with different styles of ninja stars. You may find that some designs fly better than others or have increased accuracy.
  • A cardboard box makes an ideal target.
  • Ninja stars are weapons, and they are dangerous. They should never be thrown in the direction of living things. Use them only under safe conditions. Serious injury can result with misuse.

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