My first cartoon (a la comic strip, age 9) was about a blue dog who could fly. I sold it as photocopied booklets for 20 Belgian francs, about half a Euro now, and that was my first earned money. These are some of the cartoons and illustrations for books and stories, or just story-telling sketches. Some of the cartoons are very astro-specific, as they were made for a conference and printed in the abstract book. You can also check out Booboo.