"Five-Minute Smartphone Projector DIY Materials You'll Need Shoebox or cardboard box Magnifying glass or lens Smartphone Tape Scissors Utility knife (optional) Step-by-Step Tutorial: 1. Prepare Box: Cut a rectangular hole in one side of the shoebox or cardboard box large enough to fit the magnifying glass or lens. 2. Insert Lens: Place the magnifying glass or lens in the hole, ensuring it is positioned at the center and secured in place with tape. 3. Create Phone Stand: Cut a small notch in the opposite side of the box to hold your smartphone in place. 4. Adjust Focus: Place your smartphone in the notch and adjust the position until the image is focused on the opposite side of the box. 5. Dim the Lights: Dim the lights in the room to improve the visibility of the projected image. 6. Play Content: Play videos or images on your smartphone and enjoy the enlarged projection on the opposite side of the box. 4. Adjust Focus: Place your smartphone in the notch and adjust the position until the image is focused on the opposite side of the box."