Making a tactical pen into a more useful multi-purpose tool.
1. Expand the functionality, until you have a lightsaber (as seen in the Star Wars movies)
2. Can be used to kill everyone in a distance of 3 meters
Good for self-defense
3. Can be used to make fire
4. Can be used to melt ice and snow
For drinking water
5. Great visibility at night
6. Will it be detected, if you enter a plane?
Disguise it as a laptop battery
7. Can be used to scare wild animals away
8. Greatly improves subjective feeling of security
9. Practicing with it is a great pastime activity
Maybe join a HEMA club?
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