I have, but I have GIS and cartography training. I'm currently finishing the last year of my program, and I've worked jobs making maps. Last summer I worked for Parks Canada making maps of national parks and historic sites for print and web. To be honest, the easiest way to get a job making maps, albeit of the real world, is to get GIS and cartography training. You can, like others here, carve out a niche making fantasy maps on commission, but there are plenty of well paying cartography jobs all over the world if you've got the training.
Originally Posted by RjBeals