Self Defense Sharpie Kubotan Insert

by Austin Hansen · Tools

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Transform any standard sharpie permanent marker into a discreet and effective self defense tool.

defend defense knife kubotan marker pen self sharpie tool

Category

Tools

Source

Printables

Published

02.01.2026

Updated

02.01.2026

What you need to print this: Beginner Low confidence

Single piece

Supports 1/3

Assembly 0/3

Settings 1/3

Bed size 0/3

Post-process 0/3

Printer

FDM / FFF

File format

STL

Material

Software

Cura, PrusaSlicer, or similar

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