hi im 14 and i was watching some videos of how to make a ballastic knife and i started to look around my room to see if i had the materials to make on.I found some things and decided to make my own.
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I used an expo marker and a bb gun spring.For the blade i used a pen top and a knife from a pocket knife.
You need to get an expo marker and take the top and bottom of.
Then get a paper clip or any piece of metal and shape it like an S.
Make a hole in the expo marker so the S chaped piece of metal could fit in and thats whats going to hold your knife.
Now just put the spring inside the expo marker.
Last just get a pen top and make a hole so the S shape piece of metal can hold it and heat a knife and press it down to melt the pen top.