Design the number nine ('9') with a bold outline. The number should have a circular top and a downward tail. Inside the circular top, place up to 5 small, proportional toy images, such as plush animals, toy trucks, or small balls. Important: Ensure that the number '9' and all toy images inside the circular top have no internal color whatsoever—only black outlines. There should be no shading, filling, or any color other than the outlines. The tail can be left empty or with minimal detail. Ensure all elements are contained within the number’s outline, with no lines or divisions inside.