Here's a recent project: upgrading my parents' 1980s-vintage intercom to a new video doorbell. It wasn't as easy as you might think, especially as the intercom left behind a huge hole in the wall that needed covering with this nice piece of walnut. That meant learning some new techniques, such as cutting bevels on vertical workpieces on the table saw (similar to how you might make a raised panel cabinet door) and finishing with spray lacquer (a revelation).