Homemade Lightsabers

Hello everyone! I've been surfing the internet for a while looking for information on what materials some companies' lightsabers are made of, and unfortunately I haven't found anything "very" useful. So, I know that most of the users in this subreddit (maybe less, I have no idea) have a lightsaber from some company, so I want to ask what materials it is made of and how exactly the important components are hidden inside the hilt, thanks for reading this post!