Once Upon A Millimetre begins with a box and what’s inside it. The first phase reimagines the packaging of a Smartivity toy, turning it into an engaging unboxing experience filled with playful graphics and thoughtful design that spark curiosity even before the toy is revealed. The second phase explores storytelling and STEM, creating a toy for children aged 6–12, especially girls. It blends language learning with imaginative play. Using symbol cubes, expressive sentence prompts, finger puppets and colourful conjunction tokens, it inspires creativity, communication and collaboration, making STEM more human, emotional and fun.