Make your own DIY overhead projector for tracing wall murals. Make a makeshift projector using a box, a lamp and some tape. Project the transparency onto the wall. Use a light bulb without the "frosting" on the inside for a clearer picture.
Turn Your Phone Into a Projector. Get an old shoe box cut a hole put a magnifying glass in it put your phone however close or far you want to make the picture on the wall big or small And watch whatever movie you want ;