Well, aside from being a law student (temporarily withdrawn for health reasons though, but I start again Fall). I guess you could technically say that I'm the head of a small corporation that specializes in domain name, marketing, and web presence as well as owns a few hundred or so high profile domain names. To date though, I've spent more on the domain names than I've made, so that kind of negates the "for a living" part of the question because I'm in the red and thinking of converting it to a sole proprietorship and give up the legal protection afforded by it being incorporated to save a little money annually. Obviously, while in school, I put the whole thing on hold.
I'm also in the process of trying to prototype a nifty little device that I invented a few years ago to put holiday lights on palm trees in a manner than looks more polished, makes them easier to put up and down, and eliminates the problems with wrapping tall palm trees and overloading the built in fuses. The device is also able to be left out all year long making relighting the trees every holiday season fast, easy, and wonderful looking. Furthermore, it can be used to put lights just about anywhere more easily than ever before saving a huge amount of time every year after you first put it up. I came up with it initially as a solution to how I was going to deal with the power issue mentioned before. I made the first one out of modified supplies I bought at Home Depot. The light display that year was 30,000 or so lights, so it was on the news. I immediately had tons of people noticing that my lit palm trees looked different than everybody else's, and in a good way. I was asked a lot how it worked. Then last year with 50,000 (or maybe it was more, I don't remember) lights, we had even more visitors and were on the news again, this time with over double the number of palm trees lit like this because I had perfected the device over the year. Now, I'm trying to get it on a CAD machine so I can find somebody to make seamless 100 ft rolls of it out of a very durable polymer called Nylon-6 (the same polymer used these days in things like firearms, aerospace products, guitar strings, and a lot of military applications. I don't know why it hasn't caught on in other industries, or if it has, I just haven't seen it. I've been consulting the patent division of a large NYC law firm to see if I can patent it, but so far they're saying I need to produce a prototype first so I can be able to claim prior art. My fear of course, is if I give the design to somebody to produce, I'm concerned they might just copy it and sell their own since I won't have a patent yet (I probably shouldn't tell them that). Anyways, that's all I can really go into other than to say it's very unique and works with all types of light strings, LED, large bulb, mini bulb, etc. I hope that this doesn't end up being as much of a dud as the first venture I mentioned.