Yes, this was drawn directly on an egg while the rest of my family was using normal Easter egg dye. I made a page on my other site that lets you turn the egg around with a little javascript, which I haven't gotten to work on this site yet.
I come from an artistic family, and have drawn mazes since I was about 12. My first "Segovia Maze" happened on a family trip to Segovia, Spain, where I decided to make some paths go under others. To make it clear that they weren't just dead ends, I stuck some little marks in and I've continued doing it this way.