I got a longmill cnc over the covid lock down, and I have been teaching myself how to CAD and woodworking. I did a few practice stuff making a phone holder for my cell phone and a Christmas sign.
For my current project I making some keyring tags that look like the old hotel ones. I figure that would give me a chance to practice engraving and carving with the cnc.
It turns out it did work out for learning them, the hardest part for me is coming up with items to engrave onto the tags.