Why, in this great nation is the art of improvised weapons production taught in prison, but not in primary schooling?
Not only crude firearms, but moar creative defense applications are easily imagined:
A simple microwave capacitor can become a useful defense against unwanted federal intrusion and violation of your constitutional rights. They’re cheap (relatively) too.
Limited range CO2 lasers are blinding for an enemies prying eyes, and fun/educational projects.
Just a simple meme farmer with many questions and a curious mind. Was waiting for you/someone to get triggered. Good eye, I guess.?
Filters are for, well,.. you.
They had extraterrestrial help with some a that construction.