Space to start and stop drawing. Input the letter "Y" to watch it again, and "N" to stop (or click the green flag)
A small script I created in ~15-20 minutes. What it does is it captures your mouse movements into a list, and if your mouse is down or not. This lets you draw a picture. And when you're done, it'll run through the lists and redraw everything it captured. Essentially, you can make it so a character is drawing something you set it to draw, or something like that. Use with credit. Enjoy.