I am a soccer coach for kids (my own included) in my free time. In a lot of ways it is the same as working on FOSS software. You don't get anything for it, but

I am a soccer coach for kids (my own included) in my free time. In a lot of ways it is the same as working on FOSS software. You don't get anything for it, but you get to work with other people and it is pretty fun interacting with the kids. And even if one of the kids becomes a pro you won't get any compensation for your work as well :)