I haven't found any patterns. I've just been Googling wooden shawl pins and using the images as patterns. I make them the size I want on Inkscape and print 2 so I can use one for each piece of the pin. On some, like the mouse and the cat, it helps to sand a groove in the body part to help the head and tail stay in the right place if that makes sense. I don't think copyrights would be an issue on something like this. A real pattern would be easier though. They are really fun to make.