I made my own screws (bolts and nuts) from aluminum wire. 

Do you know galvanic corrosion? White powder was deposited from an aluminum angle that was installed outdoors several years ago. The screws used for fixing are stainless bolts so that they will not rust. I thought it was the strongest metal that wouldn't rust, but ... By the way, I remembered what I learned a long time ago.
So, I have something I want to make using an aluminum can, so I searched for an aluminum screw at a DIY store, but I can't find it. I sell it online, but I didn't have the right size, so I decided to make it myself.
I'm a little maniac, but please have a look if you like.