<------------a graduate of FCI Terminal Island.
You are not thinking like a true convict. The question is not whether you can fashion a weapon from any material, but do you have the money to pay someone to either make or sell one to you from the metal shop.
Money talks, you want smokes it's money. You want a cell phone, it's money. You want X,Y, or Z, it's money. Charles Manson got caught with his 2nd cell phone.