I'm a CoderDojo mentor and I'm searching a good project to introduce middle school students to .NET Core in an easy and "fun" way (for fun I don't mean that they should enjoy the making of the project in the same way they might enjoy a game of Fortnite but I mean that the project should be more tangible and rewarding than a boring command line application). I thought to make a to-do list web app with ASP.net but maybe you can give me better ideas.