so I've been using g-tech gel pens for quite awhile now, and it just happens that i dropped one pushing it's tip in rendering it useless. but just when i was about to discard it, it looked like it could be used as a make shift metal thruster! and that is what I'm going to be teaching you guys today. don't worry, its gonna be quick.

materials:

-G-Tech gel pen

so what we're going to need is the pen tip and the ink cartridge's tip. (the rest you can throw away)

cut out the point from the cartridge like the one shown above leaving a bit of plastic. 

(make sure to clean out the excess ink)

now insert the tip into the smaller hole of the metal cap and it should fit quite snuggly like this:

if it doesn't fit right, feel free to use some glue.

and thats about all you need to make your own g-tech thruster. 

till next time!