The “Unschooler Experiment” has a blog post about how to make money from unusual passions that one would not normally consider career paths. You can read it here - http://www.unschooler.com/2011/12/making-money-from-a-career-path-that-doesn%E2%80%99t-pay/
“Yeah. So the trick is, do something that you love, and then figure out who has already learned to get paid to do that. Because a lot of people suffer from what I call Mad How Disease. So you really want to be a juggler? Then find people who are making their living as a juggler. Interview those people, read books about them, watch YouTube videos about them, find everything you can about that person. Imitate everything that they’ve done, and pretty soon you’ll be making money as a juggler and you’ll be happy doing something that you love.”