A redraw I did last year of a truly ancient doodle I did when I was still at school: http://sta.sh/01qhh0ikdqia (I have a weirdly vivid memory of drawing the original during Art class.)

It's so fun to go back to things like this. One day I'd love to get hold of one of my old sketchbooks and challenge myself to redraw everything in it one-to-one in a new book.