ペーパーボックスプロジェクター

Paper Box Projector: Crafted from a simple cardboard box, this DIY gadget hides a small lens and phone slot. Place your phone inside, adjust the angle, and walls or ceilings transform into screens—movies, photos, even hand-drawn patterns dance in soft light. Lightweight and eco-friendly, it turns ordinary spaces into cozy mini cinemas, letting imagination shine through a humble paper box.