Any ideas?

Yesterday while I was sleeping my brother apparently gained Solid Snake level sneaking or smth because he somehow managed to get his old desk in my room while I slept. I love it. Feels awsome. So far I just sat there and drank a cup of coffee. But I want ideas to use it for. Might use it for a keyboard if I get one. (Like the piano thing not a computer keyboard) but idk if I'll get one or not. I'm trying my hardest. I'm a hobby collector and an instrument collector so I'm trying my best. But if I don't manage to get it I need ideas.