In gearing up for the 3-day novel contest, I've been working on worldbuilding. The book will be centered around fighting tournaments between small, intelligent dragons, sponsored by human trainers who also provide magical healing after matches. I've been working out the biology of the dragons and the rules of the matches.
Last weekend I went with my mom to the airport to wait for my brother (hi Richard!), and I took my notebook. While I talked to Mom, I designed various types of markings for the dragons. Then I gave my notebook to my mom while I ran to the bathroom, and when I got back--well, my mom had designed another creature. Hell, I might put him into the book.