I sent this to her a long time ago, and now we call my hobbies (home improvement/woodworking/audio) “my Legos” as an inside joke. I don’t spend frivolously, and my wife doesn’t mind when I make purchases relating to my hobbies. We’re financially secure and we’re very much aligned in our financial goals and philosophies, so when I buy anything (which isn’t very often), she trusts that the purchase won’t have a negative effect on our finances. She even gets a little excited for me when something arrives at the house. It’s very nice to be supported in this way