Place the "dart" pin tip first into the pen tube. Aim in a safe direction, then give a quick blow into the pen tube behind the dart. The dart will f...
To Build a miniature blow gun.
You will need:
Straight pin with ball or flat head on back end
Hot glue gun
Note: this same process can be scaled up using PVC pipe for a more typical blow gun size.
Step 1: Disassemble A Pen
Remove both ends of a pen and discard the two ends. The tube will become the blow gun
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