Create the number one ('1') with a clean, bold outline. Ensure the design is simple and engaging for children. Inside the number, add wavy or zigzag lines to divide the space into sections for coloring. Include up to 5 small images of toys, such as toy blocks or teddy bears, that are proportionally sized to fit within these sections. Make sure all the toys and lines are contained entirely within the number’s outline. The design should have no internal color, only outlines for the toys and sections.