I recently got some material from a friend - salvaged black board (actual all-natural slate!) for a school building that closed.
It was too big for where I wanted it to go in my house, so I had to cut it. After a little advice from a friend who works in tile, it didn't sound too hard, so I gave it the DIY try.
I made a video about it.
I was only able to mount one of the smaller cut-off's so far.
Later this weekend, I'll work on a wood frame for the large piece.