This is very basic, and honestly, I just said to myself, "I'll record this just in case I design something awesome." Obviously, the result was less than earth-shattering, but if anybody likes it, I can throw it in the CC Store.
If this spurs ideas people want to see more of, you're welcome to share your ideas, and maybe I can throw them in a design...This was just spur of the moment, so with a little planning, I can make something much cooler. (And have, actually.)
Without further adieu, here's what I'm calling the "Four Corners of the Earth" shirt...