This sweet coloring page features Caillou and his adorable little sister Mousseline on a cheerful birthday greeting card design! The two beloved characters come together to celebrate, bringing all the warmth and fun that fans of the show absolutely love. Your child can bring this cute scene to life with their favorite colors, personalizing it as a special card for a friend or family member's birthday. It makes creativity even more meaningful when the finished artwork becomes a real gift! This free printable PDF is perfect for kids who want to celebrate someone special while enjoying some screen-free creative fun. Just download, print, and let the coloring celebration begin!
