Ask HN: Ideas for a project to practice skill in React/Node.js?

I really want to create something new just to practice my skills, I have already created standard Fullstack projects in Blitz.js like a simple blog with admin panel and comments, or a simple forum. Unfortunately I'm not too creative to come up with a new interesting project, and I would really like to start programming more in my free time, but I have no idea. Thank you for every idea, even the stupidest, because every idea is valuable.