In 2009 I started a small side business doing headlight restoration on cars. I stopped doing it a few years ago when I became part owner of a much better, more lucrative company. But as of the last year or so, I've been doing headlight restoration on the side because it's easy money and is actually enjoyable to do. I charge $89/set and it takes about an hour. Even though I took my website offline a long time ago, I still get calls from people who find me on Google maps. If I get 3 sets a month, I have $250 (after materials) or so to play with for that month. Anybody else have something they do on the side to support their hobby?? Just to give you an idea, here's what my clients get: before after Cheers!